ORCID Profile
0000-0003-0146-5259
Current Organisation
QUT: Science and Engineering Faculty; School of Chemistry, Physics, Mechanical Engineering.
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Research Topics
In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Top 5 Research Topics
ANZSRC Field of Research (FoR)
Functional Materials | Materials Engineering | Photodetectors, Optical Sensors and Solar Cells | Materials engineering | Macromolecular and Materials Chemistry | Materials Engineering not elsewhere classified | Nanoscale Characterisation | Functional materials | Optical Properties of Materials | Synthesis of Materials | Environmental Technologies | Chemical Characterisation of Materials | Environmental Engineering | Nanofabrication growth and self assembly | Nanomaterials | Manufacturing Engineering | Chemical Engineering not elsewhere classified | Nanotechnology | Manufacturing Processes and Technologies (excl. Textiles) | Numerical Modelling and Mechanical Characterisation | Condensed Matter Characterisation Technique Development | Nanotechnology not elsewhere classified |
ANZSRC Socio-Economic Objective (SEO)
Solar-Photovoltaic Energy | Expanding Knowledge in Technology | Energy Storage (excl. Hydrogen) | Expanding Knowledge in the Chemical Sciences | Expanding Knowledge in Engineering | Renewable Energy not elsewhere classified | Health Related to Ageing | Scientific Instruments | Coated Metal and Metal-Coated Products
Related Links
Publications
Enhanced Photocatalytic Activity of Titanium Oxide Nanotubes After Heating Treatment
Publisher: American Scientific Publishers
Date: 02-2013
Abstract: Titanium oxide nanotubes were obtained by an electrochemical anodization method. Scanning electron microscope results demonstrate that the diameter of the tubes is about 120 nm and the length of the tubes is around 13 microm. Transmission electron microscope results indicate that the nanotubes are assembled by numerous nanoparticles and tube-like structure remains well after heat treatment at 400-600 degrees C. The photocatalysis performance of the nanotubes was evaluated in terms of the decomposition rate of methyl orange under UV irradiation. The results show that the photocatalytic activity was enhanced through the heating treatment of the nanotubes, and the nanotubes heated at 600 degrees C exhibits the best photocatalytic activity. X-ray diffraction patterns indicate that there is no phase transformation during the heat treatment. Therefore, the enhanced activity can be attributed to the improvement of nanotubes crystallinity, which may provide more insights about the effect of the crystallinity on the photocatalytic performance.
Thermal effect on CZTS solar cells in different process of ZnO/ITO window layer fabrication
Publisher: Elsevier BV
Date: 12-2018
Preparation of mulberry-like RuO2 electrode material for supercapacitors
Publisher: Springer Science and Business Media LLC
Date: 07-09-2021
One-step synthesis of titanium oxide with trilayer structure for dye-sensitized solar cells
Publisher: AIP Publishing
Date: 28-03-2011
DOI: 10.1063/1.3573799
Abstract: Titanium oxide films with trilayer structure grown on fluorine doped tin oxide substrate were prepared from one-step hydrothermal process. The trilayer structure consists of microflowers, nanorod array and compact nanoparticulates, which is expected to possess the merits of good light harvesting, a high electron transport rate, while avoiding the issues of electron shunting. The photovoltaic performance was comprehensively studied and a 60% enhancement in short circuit photocurrent density was found from microflowers contribution as a light scattering layer. This unique trilayer structure exhibits great potential application in future dye-sensitized solar cells.
A trial protocol for the effectiveness of digital interventions for preventing depression in adolescents: The Future Proofing Study
Publisher: Springer Science and Business Media LLC
Date: 02-01-2020
DOI: 10.1186/S13063-019-3901-7
Abstract: Depression frequently first emerges during adolescence, and one in five young people will experience an episode of depression by the age of 18 years. Despite advances in treatment, there has been limited progress in addressing the burden at a population level. Accordingly, there has been growing interest in prevention approaches as an additional pathway to address depression. Depression can be prevented using evidence-based psychological programmes. However, barriers to implementing and accessing these programmes remain, typically reflecting a requirement for delivery by clinical experts and high associated delivery costs. Digital technologies, specifically smartphones, are now considered a key strategy to overcome the barriers inhibiting access to mental health programmes. The Future Proofing Study is a large-scale school-based trial investigating whether cognitive behaviour therapies (CBT) delivered by smartphone application can prevent depression. A randomised controlled trial targeting up to 10,000 Year 8 Australian secondary school students will be conducted. In Stage I, schools will be randomised at the cluster level either to receive the CBT intervention app (SPARX) or to a non-active control group comparator. The primary outcome will be symptoms of depression, and secondary outcomes include psychological distress, anxiety and insomnia. At the 12-month follow-up, participants in the intervention arm with elevated depressive symptoms will participate in an in idual-level randomised controlled trial (Stage II) and be randomised to receive a second CBT app which targets sleep difficulties (Sleep Ninja) or a control condition. Assessments will occur post intervention (both trial stages) and at 6, 12, 24, 36, 48 and 60 months post baseline. Primary analyses will use an intention-to-treat approach and compare changes in symptoms from baseline to follow-up relative to the control group using mixed-effect models. This is the first trial testing the effectiveness of smartphone apps delivered to school students to prevent depression at scale. Results from this trial will provide much-needed insight into the feasibility of this approach. They stand to inform policy and commission decisions concerning if and how such programmes should be deployed in school-based settings in Australia and beyond. Australian and New Zealand Clinical Trial Registry, ACTRN12619000855123 . Registered on 31 May 2019. Clinical Trial Notification Scheme (CTN), CT-2019-CTN-02110-1-v1. Registered on 30 June 2019.
10% Efficiency Cu2ZnSn(S,Se)4 thin film solar cells fabricated by magnetron sputtering with enlarged depletion region width
Publisher: Elsevier BV
Date: 05-2016
Progress in research on the stability of organometal perovskite solar cells
Publisher: Elsevier BV
Date: 2016
UV-ozone induced surface passivation to enhance the performance of Cu2ZnSnS4 solar cells
Publisher: Elsevier BV
Date: 09-2019
Secondary school Year Advisors’ perspectives on their role, responsibilities and training needs for student mental health: Insights from a co-design workshop
Publisher: Research Square Platform LLC
Date: 04-03-2021
DOI: 10.21203/RS.3.RS-294624/V1
Abstract: Anxiety and depression commonly emerge during adolescence and secondary schools are well placed to recognise deteriorations in young people’s mental health. In Australian secondary schools, Year Advisors (or year co-ordinators), have been identified as key teaching staff for assisting students with their mental health and facilitating help-seeking. However, there is little understanding of the responsibilities of this role and the mental health training needs of these educators. In December 2017, 12 secondary school Year Advisors from NSW, Australia, took part in a one-day co-design workshop that explored their current role in caring for student mental health and developed a resource that matched their training needs. This paper explores the insights generated from this workshop and outlines a way to engage end-users in the design of mental health training programs. The workshop attendees strongly supported the development of an adolescent mental health training program that was specific to the Year Advisor role, improved their knowledge of adolescent mental health, and developed their skills and confidence to support students in need.
Evaluating a web-based mental health service for secondary school students in Australia: Protocol for a cluster randomized controlled trial
Publisher: JMIR Publications Inc.
Date: 15-05-2022
DOI: 10.2196/12892
Kinetic and material properties of interfaces governing slow response and long timescale phenomena in perovskite solar cells
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9EE00802K
Abstract: The vast difference in timescale of carrier transport detected in perovskite solar cells is associated with different kinetics processes involving electron, defects and large cations, which determines the device performance and I–V hysteresis.
Spiro-OMeTAD or CuSCN as a preferable hole transport material for carbon-based planar perovskite solar cells
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0TA03951A
Abstract: Carbon electrode-based planar PSCs demonstrated higher device performance and reduced hysteresis using a CuSCN based HTL owing to its favourable energy level alignment with the perovskite compared to conventional spiro-OMeTAD based HTL.
Guanidinium thiocyanate selective Ostwald ripening induced large grain for high performance perovskite solar cells
Publisher: Elsevier BV
Date: 06-2013
In-Situ Grown Ni(OH)2Nanosheets on Ni Foam for Hybrid Supercapacitors with High Electrochemical Performance
Publisher: The Electrochemical Society
Date: 2018
DOI: 10.1149/2.0411805JES
Increased charge transfer of Poly (ethylene oxide) based electrolyte by addition of small molecule and its application in dye-sensitized solar cells
Publisher: Elsevier BV
Date: 2013
High capacitive amorphous barium nickel phosphate nanofibers for electrochemical energy storage
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6RA08149E
Abstract: Ba x Ni 3−x (PO 4 ) 2 (0 x 3) amorphous nanofibers with excellent supercapacitive performance were synthesized through a facile cation-exchange method.
Enhanced morphology and stability of high-performance perovskite solar cells with ultra-smooth surface and high fill factor via crystal growth engineering
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7SE00036G
Abstract: We report a highly reproducible method for controlling perovskite crystal growth by a spraying anti-solvent process. A PCE of 19.21% was obtained, with a fill factor as high as 80.84%.
Interface Engineering to Eliminate Hysteresis of Carbon-Based Planar Heterojunction Perovskite Solar Cells via CuSCN Incorporation
Publisher: American Chemical Society (ACS)
Date: 17-07-2019
Abstract: A carbon electrode with low cost and high stability exhibited competitiveness for its practical application in organic-inorganic hybrid perovskite solar cells (PSCs). Nonetheless, issues such as poor interface contact with an adjacent perovskite layer and obvious hysteresis phenomenon are bottlenecks that need to be overcome to make carbon-based PSCs (C-PSCs) more attractive in practice. Herein, we report an effective method to enhance the interfacial charge transport of C-PSCs by introducing the CuSCN material into the device. Two types of CuSCN-assisted devices were studied in this work. One was based on the deposition of an ultrathin CuSCN layer between the perovskite absorber layer and the carbon cathode (PSK/CuSCN/C), and the other was by infiltrating CuSCN solution into the carbon film (PSK/C-CuSCN) by taking advantage of the macroporous structure of the carbon. We have found that the CuSCN incorporation by both methods can effectively address the hysteretic feature in planar C-PSCs. The origin for the hysteresis evolution was unraveled by the investigation of the energy alignment and the kinetics of interfacial charge transfer and hole trap-state density. The results have shown that both types of CuSCN-containing devices showed improved interfacial charge carrier extraction, suppressed carrier recombination, reduced trap-state density, and enhanced charge transport, leading to negligible hysteresis. Furthermore, the CuSCN-incorporated C-PSCs demonstrated enhanced device stability. The power conversion efficiency remained 98 and 91% of the initial performance (13.6 and 13.4%) for PSK/CuSCN/C and PSK/C-CuSCN, respectively, after being stored under a high humidity (75-85%) environment for 10 days. The devices also demonstrated extraordinary long-term stability with a negligible performance drop after being stored in air (relative humidity: 33-35%) for 90 days.
Highly efficient dye-sensitized solar cells using a composite electrolyte
Publisher: Elsevier BV
Date: 05-2006
Progress in Thin Film Solar Cells Based on Cu2ZnSnS4
Publisher: Hindawi Limited
Date: 2011
DOI: 10.1155/2011/801292
Abstract: The research in thin film solar cells has been dominated by light absorber materials based on CdTe and Cu(In,Ga)Se 2 (CIGS) in the last several decades. The concerns of environment impact of cadmium and the limited availability of indium in those materials have driven the research towards developing new substitute light absorbers made from earth abundant, environment benign materials. Cu 2 ZnSnS 4 (CZTS) semiconductor material has emerged as one of the most promising candidates for this aim and has attracted considerable interest recently. Significant progress in this relatively new research area has been achieved in the last three years. Over 130 papers on CZTS have been published since 2007, and the majority of them are on the preparation of CZTS thin films by different methods. This paper, will review the wide range of techniques that have been used to deposit CZTS semiconductor thin films. The performance of the thin film solar cells using the CZTS material will also be discussed.
Protic ionic liquid assisted solution processing of lead halide perovskites with water, alcohols and acetonitrile
Publisher: Elsevier BV
Date: 09-2018
Flexible quasi-solid-state dual-ion asymmetric supercapacitor based on Ni(OH)2 and Nb2O5 nanosheet arrays
Publisher: Elsevier BV
Date: 10-2019
Potassium doping to enhance green photoemission of light-emitting diodes based on CsPbBr3 perovskite nanocrystals
Publisher: Wiley
Date: 22-06-2020
Effect of inorganic iodides on performance of dye-sensitized solar cells
Publisher: American Chemical Society (ACS)
Date: 20-09-2007
DOI: 10.1021/JP075305F
Optimization of Mo/Cr bilayer back contacts for thin-film solar cells
Publisher: Beilstein Institut
Date: 18-10-2018
DOI: 10.3762/BJNANO.9.252
Abstract: Molybdenum (Mo) is the most commonly used material as back contact in thin-film solar cells. Adhesion of Mo film to soda–lime glass (SLG) substrate is crucial to the performance of solar cells. In this study, an optimized bilayer structure made of a thin layer of Mo on an ultra-thin chromium (Cr) adhesion layer is used as the back contact for a copper zinc tin sulfide (CZTS) thin-film solar cell on a SLG substrate. DC magnetron sputtering is used for deposition of Mo and Cr films. The conductivity of Mo/Cr bilayer films, their microstructure and surface morphology are studied at different deposition powers and working pressures. Good adhesion to the SLG substrate has been achieved by means of an ultra-thin Cr layer under the Mo layer. By optimizing the deposition conditions we achieved low surface roughness, high optical reflectance and low sheet resistivity while we could decrease the back contact thickness to 600 nm. That is two thirds to half of the thickness that is currently being used for bilayer and single layer back contact for thin-film solar cells. We demonstrate the excellent properties of Mo/Cr bilayer as back contact of a CZTS solar cell.
Electrochemically Exfoliated Graphene for Electrode Films: Effect of Graphene Flake Thickness on the Sheet Resistance and Capacitive Properties
Publisher: American Chemical Society (ACS)
Date: 18-10-2013
DOI: 10.1021/LA403159N
Abstract: We present an electrochemical exfoliation method to produce controlled thickness graphene flakes by ultrasound assistance. Bilayer graphene flakes are dominant in the final product by using sonication during the electrochemical exfoliation process, while without sonication the product contains a larger percentage of four-layer graphene flakes. Graphene sheets prepared by using the two procedures are processed into films to measure their respective sheet resistance and optical transmittance. Solid-state electrolyte supercapacitors are made using the two types of graphene films. Our study reveals that films with a higher content of multilayer graphene flakes are more conductive, and their resistance is more easily reduced by thermal annealing, making them suitable as transparent conducting films. The film with higher content of bilayer graphene flakes shows instead higher capacitance when used as electrode in a supercapacitor.
Self-assembled carbon dot-wrapped perovskites enable light trapping and defect passivation for efficient and stable perovskite solar cells
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1TA00036E
Abstract: A strategy to utilize carbon dots for simultaneously improving photovoltaic performance and longevity of metal halide perovskite solar cells.
Transport and interfacial transfer of electrons in dye-sensitized solar cells utilizing a Co(dbbip)2 redox shuttle
Publisher: American Chemical Society (ACS)
Date: 03-08-2010
DOI: 10.1021/JP105753K
Binary NiCu layered double hydroxide nanosheets for enhanced energy storage performance as supercapacitor electrode
Publisher: Springer Science and Business Media LLC
Date: 16-11-0001
Dinuclear Ru–Cu Complexes: Electronic Characterisation and Application to Dye‐Sensitised Solar Cells
Publisher: Wiley
Date: 27-12-2010
Plasma-induced on-surface sulfur vacancies in NiCo2S4 enhance the energy storage performance of supercapatteries
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0TA01991G
Abstract: Accurate tuning sulfur vacancy of NiCo 2 S 4 nanoparticles enabled by plasma treatment provides a novel and efficient approach to enhance electrochemical performance of supercapattery.
Reduced electron recombination of dye-sensitized solar cells based on TiO2 spheres consisting of ultrathin nanosheets with [001] facet exposed
Publisher: Beilstein Institut
Date: 07-05-2012
DOI: 10.3762/BJNANO.3.44
Abstract: An anatase TiO 2 material with hierarchically structured spheres consisting of ultrathin nanosheets with 100% of the [001] facet exposed was employed to fabricate dye-sensitized solar cells (DSCs). Investigation of the electron transport and back reaction of the DSCs by electrochemical impedance spectroscopy showed that the spheres had a threefold lower electron recombination rate compared to the conventional TiO 2 nanoparticles. In contrast, the effective electron diffusion coefficient, D n , was not sensitive to the variation of the TiO 2 morphology. The TiO 2 spheres showed the same D n as that of the nanoparticles. The influence of TiCl 4 post-treatment on the conduction band of the TiO 2 spheres and on the kinetics of electron transport and back reactions was also investigated. It was found that the TiCl 4 post-treatment caused a downward shift of the TiO 2 conduction band edge by 30 meV. Meanwhile, a fourfold increase of the effective electron lifetime of the DSC was also observed after TiCl 4 treatment. The synergistic effect of the variation of the TiO 2 conduction band and the electron recombination determined the open-circuit voltage of the DSC.
Enhanced perovskite electronic properties via a modified lead(ii ) chloride Lewis acid–base adduct and their effect in high-efficiency perovskite solar cells
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C6TA11139D
Abstract: 19% perovskite solar cells with enhanced electronic properties of MAPbI 3 film through employing 2.5% PbCl 2 additive in the precursor.
Prospects of e-beam evaporated molybdenum oxide as a hole transport layer for perovskite solar cells
Publisher: AIP Publishing
Date: 25-09-2017
DOI: 10.1063/1.4996784
Abstract: Perovskite solar cells have emerged as one of the most efficient and low cost technologies for delivering of solar electricity due to their exceptional optical and electrical properties. Commercialization of the perovskite solar cells is, however, limited because of the higher cost and environmentally sensitive organic hole transport materials such as spiro-OMETAD and PEDOT:PSS. In this study, an empirical simulation was performed using the Solar Cell Capacitance Simulator software to explore the MoOx thin film as an alternative hole transport material for perovskite solar cells. In the simulation, properties of MoOx thin films deposited by the electron beam evaporation technique from high purity (99.99%) MoO3 pellets at different substrate temperatures (room temperature, 100 °C and 200 °C) were used as input parameters. The films were highly transparent (& %) and have low surface roughness (≤2 nm) with bandgap energy ranging between 3.75 eV and 3.45 eV. Device simulation has shown that the MoOx deposited at room temperature can work in both the regular and inverted structures of the perovskite solar cell with a promising efficiency of 18.25%. Manufacturing of the full device is planned in order to utilize the MoOx as an alternative hole transport material for improved performance, good stability, and low cost of the perovskite solar cell.
Characterization of electron trapping in dye-sensitized solar cells by near-IR transmittance measurements
Publisher: American Chemical Society (ACS)
Date: 17-04-2009
DOI: 10.1021/JP901213F
Controlling the adsorption behavior of hydrogen at the interface of polycrystalline CVD graphene
Publisher: Elsevier BV
Date: 10-2018
High Conversion of Concentrated Sugars to 5-Hydroxymethylfurfural over a Metal-free Carbon Catalyst: Role of Glucose–Fructose Dimers
Publisher: American Chemical Society (ACS)
Date: 20-10-2023
New insight into solvent engineering technology from evolution of intermediates via one-step spin-coating approach
Publisher: Springer Science and Business Media LLC
Date: 17-04-2017
Graphene-covered perovskites: an effective strategy to enhance light absorption and resist moisture degradation
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5RA14381K
Abstract: The graphene-coated strategy can effectively protect MAPbI 3 from the reaction with water, thus maintaining the long-term stability of MAPbI 3 in the moist environment.
Enhanced Electron Lifetime of CdSe/CdS Quantum Dot (QD) Sensitized Solar Cells Using ZnSe Core–Shell Structure with Efficient Regeneration of Quantum Dots
Publisher: American Chemical Society (ACS)
Date: 23-01-2015
DOI: 10.1021/JP510339Z
In-situ growth of nanowire WO2.72 on carbon cloth as a binder-free electrode for flexible asymmetric supercapacitors with high performance
Publisher: Elsevier BV
Date: 02-2019
An efficient hole transport material composite based on poly(3-hexylthiophene) and bamboo-structured carbon nanotubes for high performance perovskite solar cells
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C4TA04997G
Ternary NiCoFe Layered Double Hydroxide Nanosheets Synthesized by Cation Exchange Reaction for Oxygen Evolution Reaction
Publisher: Elsevier BV
Date: 12-2017
Influence of addition of larger particles into 3 nm particles of TiO 2 film on the performance of dye-sensitized solar cells
Publisher: SPIE
Date: 21-12-2008
DOI: 10.1117/12.766953
Organic-inorganic bismuth (III)-based material: A lead-free, air-stable and solution-processable light-absorber beyond organolead perovskites
Publisher: Springer Science and Business Media LLC
Date: 09-01-2016
Bias-dependent effects in planar perovskite solar cells based on CH 3 NH 3 PbI 3− x Cl x films
Publisher: Elsevier BV
Date: 09-2015
DOI: 10.1016/J.JCIS.2015.04.041
Abstract: A unique bias-dependent phenomenon in CH3NH3PbI(3-x)Cl(x) based planar perovskite solar cells has been demonstrated, in which the photovoltaic parameters derived from the current-voltage (I-V) curves are highly dependent on the initial positive bias of the I-V measurement. In FTO/CH3NH3PbI(3-x)Cl(x)/Au devices, the open-circuit voltage and short-circuit current increased by ca. 337.5% and 281.9% respectively, by simply increasing the initial bias from 0.5 V to 2.5 V.
Critical assessment of carbon pastes for carbon electrode-based perovskite solar cells
Publisher: Elsevier BV
Date: 03-2023
A Precursor Stacking Strategy to Boost Open-Circuit Voltage of Cu2ZnSnS4Thin-Film Solar Cells
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 05-2018
The Building Educators’ Skills in Adolescent Mental Health Training Program for Secondary School Educators: Protocol for a Cluster Randomized Controlled Trial
Publisher: JMIR Publications Inc.
Date: 24-02-2021
DOI: 10.2196/25870
Abstract: In Australia, secondary school educators are well positioned to recognize mental illness among students and provide support. However, many report that they lack the knowledge and confidence to do so, and few mental health training programs available for educators are evidence based. To address this gap, the Black Dog Institute (BDI) developed a web-based training program (Building Educators’ Skills in Adolescent Mental Health [BEAM]) that aims to improve mental health knowledge, confidence, and helping behaviors among secondary school educators in leadership positions. A pilot study of the training program found it to be positively associated with increased confidence and helping behaviors among educators and reduced personal psychological distress. An adequately powered randomized controlled trial (RCT) is needed. The primary objective of this cluster RCT is to evaluate the effectiveness of the BEAM program for improving educators’ confidence in managing student mental health. The trial will also evaluate the effect of the BEAM program in increasing educators’ frequency of providing help to students and improving their mental health knowledge and reducing educators’ psychological distress and stigma toward students with mental health issues. The target s le size is 234 educators from 47 secondary schools across New South Wales, Australia. Four waves of recruitment and enrollment into the trial are planned. Schools will participate in one wave only and will be randomized to the intervention or waitlist control conditions. Participants from the same school will be assigned to the same condition. Assessments will be conducted at baseline, posttest (10 weeks after baseline), and follow-up (22 weeks after baseline) using the BDI eHealth research platform. Intervention participants will receive access to the BEAM program for 10 weeks upon completion of baseline, and the control condition will receive access for 10 weeks upon completion of the follow-up assessment. Recruitment for this trial began on July 21, 2020, with the first baseline assessments occurring on August 17, 2020. To date, 295 participants from 71 schools have completed baseline. Due to the unexpected success of recruitment in the first 3 waves, the final fourth wave has been abandoned. Intervention participants are currently receiving the program, with follow-up due for completion in March 2021. This is one of the first RCTs to examine the effectiveness of a web-based adolescent mental health training program for Australian secondary school educators in leadership positions. If found to be effective, this training program will offer a sustainable and scalable delivery method for upskilling educators in caring for students’ mental health. Australian New Zealand Clinical Trials Registry ACTRN12620000876998 tudies/crs-14669208 DERR1-10.2196/25870
A comparison of different methods to determine diffusion length in dye-sensitized solar cells
Publisher: American Chemical Society (ACS)
Date: 23-09-2009
DOI: 10.1021/JP906629T
Growth of Cu2ZnSnSe4 Film under Controllable Se Vapor Composition and Impact of Low Cu Content on Solar Cell Efficiency
Publisher: American Chemical Society (ACS)
Date: 15-04-2016
Abstract: It is a challenge to fabricate high quality Cu2ZnSnSe4 (CZTSe) film with low Cu content (Cu/(Zn + Sn) < 0.8). In this work, the growth mechanisms of CZTSe films under different Se vapor composition are investigated by DC-sputtering and a postselenization approach. The composition of Se vapor has important influence on the compactability of the films and the diffusion of elements in the CZTSe films. By adjusting the composition of Se vapor during the selenization process, an optimized two step selenization process is proposed and highly crystallized CZTSe film with low Cu content (Cu/(Zn + Sn) = 0.75) is obtained. Further study of the effect of Cu content on the morphology and photovoltaic performance of the corresponding CZTSe solar cells has shown that the roughness of the CZTSe absorber film increases when Cu content decreases. As a consequence, the reflection loss of CZTSe solar cells reduces dramatically and the short circuit current density of the cells improve from 34.7 mA/cm(2) for Cu/(Zn + Sn) = 0.88 to 38.5 mA/cm(2) for Cu/(Zn + Sn) = 0.75. In addition, the CZTSe solar cells with low Cu content show longer minority carrier lifetime and higher open circuit voltage than the high Cu content devices. A ch ion performance CZTSe solar cell with 10.4% efficiency is fabricated with Cu/(Zn + Sn) = 0.75 in the CZTSe film without antireflection coating.
Electron Diffusion and Back Reaction in Dye-Sensitized Solar Cells: The Effect of Nonlinear Recombination Kinetics
Publisher: American Chemical Society (ACS)
Date: 29-01-2010
DOI: 10.1021/JZ1000243
N-Aryl stilbazolium dyes as sensitizers for solar cells
Publisher: Elsevier BV
Date: 2012
One-pot synthesis of 2D Ti3C2/Ni2CO3(OH)2 composite as electrode material with superior capacity and high stability for hybrid supercapacitor
Publisher: Elsevier BV
Date: 12-2018
A facile, environmentally friendly synthesis of strong photo-emissive methylammonium lead bromide perovskite nanocrystals enabled by ionic liquids
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0GC01081B
Abstract: An ionic liquid-based green synthesis of perovskite nanocrystals towards practical applications.
2-Methylimidazole-Derived Ni-Co Layered Double Hydroxide Nanosheets as High Rate Capability and High Energy Density Storage Material in Hybrid Supercapacitors
Publisher: American Chemical Society (ACS)
Date: 27-04-2017
Abstract: A new method based on one-step solvothermal reaction is demonstrated to synthesize ultrathin Ni-Co layered double hydroxide (LDH) nanosheets, which grow directly on a flexible carbon fiber cloth (NiCo-LDH/CFC). Through using 2-methylimidazole as complex and methanol as solvent, the as-prepared NiCo-LDH/CFC shows a (003) facet preferential growth and an expanded interlayer spacing structure, resulting in a unique 3D porous nanostructure with a thickness of nanosheets of around 5-7 nm that shows high energy storage performance. By controlling the ratio of Ni/Co = 4:1 in the precursor solution, the electrode shows a specific capacitance of 2762.7 F g
Adherence to e-mental health among youth: Considerations for intervention development and research design
Publisher: SAGE Publications
Date: 2020
Abstract: E-mental health programmes have great potential to provide young people with access to mental health support. However, it is commonly reported that adherence to these programmes is low. Low adherence can be problematic, particularly if young people do not receive the full benefits of a programme. In a research trial setting, non-adherence to treatment recommendations can prevent researchers from drawing strong conclusions about effectiveness. Although adherence has been recognised as an issue in need of attention, many of the reviews available are focused on adults and lack clear direction towards what strategies to employ. This paper presents a broad review of the adherence literature, focusing on factors associated with improving adherence to e-mental health among youth. Our view on the key elements to improve adherence identified from the existing literature are presented, and key recommendations for e-mental health intervention design are provided. These include: developing and communicating adherence guidelines based on in iduals’ needs and symptom severity, including customisable features to provide a tailored experience and promote a sense of agency, including engagement checks and adopting a user-centred approach by utilising strategies such as co-design. This paper provides guidance to intervention designers and researchers by outlining recommendations and considerations for intervention development and research design.
Progress, challenges, and further trends of all perovskites tandem solar cells: A comprehensive review
Publisher: Elsevier BV
Date: 07-2023
ZnO Nanocones with High-Index {101̅1} Facets for Enhanced Energy Conversion Efficiency of Dye-Sensitized Solar Cells
Publisher: American Chemical Society (ACS)
Date: 25-06-2013
DOI: 10.1021/JP402742N
Kinetics of electron recombination of dye-sensitized solar cells based on TiO2 nanorod arrays sensitized with different dyes
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C1CP22482D
Abstract: The performance and electron recombination kinetics of dye-sensitized solar cells based on TiO(2) films consisting of one-dimensional nanorod arrays (NR-DSSCs) which are sensitized with dyes N719, C218 and D205, respectively, have been studied. It has been found that the best efficiency is obtained with the dye C218 based NR-DSSCs, benefiting from a 40% higher short-circuit photocurrent density. However, the open circuit photovoltage of the N719 based cell is 40 mV higher than that of the organic dye C218 and D205 based devices. Investigation of the electron recombination kinetics of the NR-DSSCs has revealed that the effective electron lifetime, τ(n), of the different dye based NR-DSSCs shows the sequence of C218 > D205 > N719. The higher V(oc) with the N719 based NR-DSSC is originated from the more negative energy level of the conduction band of the TiO(2) film. In addition, in comparison to the DSSCs with the conventional nanocrystalline particles based TiO(2) films, the NR-DSSCs have shown over two orders of magnitude higher τ(n) when employing N719 as the sensitizer. Nevertheless, the τ(n) of the DSSCs with the C218 based nanorod arrays is only ten-fold higher than that of the nanoparticles based devices. The remarkable characteristic of the dye C218 in suppressing the electron recombination of DSSCs is discussed.
Correction to “Electron Diffusion and Back Reaction in Dye-Sensitized Solar Cells: The Effect of Nonlinear Recombination Kinetics”
Publisher: American Chemical Society (ACS)
Date: 07-09-2010
DOI: 10.1021/JZ1011498
School-based depression and anxiety prevention programs: An updated systematic review and meta-analysis.
Publisher: Elsevier BV
Date: 11-2021
One-step synthesis of high quality kesterite Cu2 ZnSnS4 nanocrystals - a hydrothermal approach
Publisher: Beilstein Institut
Date: 09-04-2014
DOI: 10.3762/BJNANO.5.51
Abstract: The present work demonstrates a systematic approach for the synthesis of pure kesterite-phase Cu 2 ZnSnS 4 (CZTS) nanocrystals with a uniform size distribution by a one-step, thioglycolic acid (TGA)-assisted hydrothermal route. The formation mechanism and the role of TGA in the formation of CZTS compound were thoroughly studied. It has been found that TGA interacted with Cu 2+ to form Cu + at the initial reaction stage and controlled the crystal-growth of CZTS nanocrystals during the hydrothermal reaction. The consequence of the reduction of Cu 2+ to Cu + led to the formation Cu 2− x S nuclei, which acted as the crystal framework for the formation of CZTS compound. CZTS was formed by the diffusion of Zn 2+ and Sn 4+ cations to the lattice of Cu 2− x S during the hydrothermal reaction. The as-synthesized CZTS nanocrystals exhibited strong light absorption over the range of wavelength beyond 1000 nm. The band gap of the material was determined to be 1.51 eV, which is optimal for application in photoelectric energy conversion device.
Ruthenium(II) dichloro or dithiocyanato complexes with 4,4′:2′,2″:4″,4‴-quaterpyridinium ligands: Towards photosensitisers with enhanced low-energy absorption properties
Publisher: Elsevier BV
Date: 02-2013
Effects of metal ion concentration on electrodeposited CuZnSn film and its application in kesterite Cu2ZnSnS4 solar cells
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5RA09966H
Abstract: The influence of metal cation concentrations on the composition, morphology and alloy formation of co-electrodeposited CuZnSn film was investigated.
Polyacrylic Acid Assisted Synthesis of Cu2ZnSnS4 by Hydrothermal Method
Publisher: American Scientific Publishers
Date: 07-2014
Youth StepCare: A pilot study of an online screening and recommendations service for depression and anxiety among youth patients in general practice
Publisher: Springer Science and Business Media LLC
Date: 07-01-2020
DOI: 10.1186/S12875-019-1071-Z
Abstract: General Practitioners (GPs) are ideally placed to identify and manage emerging mental illness in young people, however, many report low levels of confidence in doing so. A web-based universal screening service delivered via a mobile tablet, Youth StepCare, was developed to assist GPs in identifying depression and anxiety symptoms in youth patients. This service also provided evidence-based treatment recommendations and fortnightly monitoring of symptoms. The current study assessed the feasibility and acceptability of delivering the Youth StepCare service in Australian general practices. A 12-week uncontrolled trial was undertaken between August 2018 and January 2019 in two general practices in NSW, Australia. The service was offered to all youth patients aged 14 to 17 years who visited a participating GP during the screening period with their parent or guardian. Youth patients reported the presence of depressive and anxiety symptoms using the self-report Patient Health Questionnaire-9 and the Generalised Anxiety Disorder Questionnaire-7. New cases were defined as those who reported symptoms but were not currently seeking help from their GP, nor had sought help in the past. Feasibility and acceptability among GPs and practice staff were assessed using a battery of questionnaires. Five GPs and 6 practice staff took part. A total of 46 youth patients were approached, 28 consented, and 19 completed the screener (67.9%). Nine reported symptoms of anxiety or depression, two of which were new cases (22.2%). GPs and practice staff were satisfied with the service, reporting that there was a need for the service and that they would use it again. The Youth StepCare service appears to be a useful tool for identifying youth with unidentified symptoms of mental illness that can be easily embedded into general practice. Further research would benefit from exploring the factors affecting initial GP uptake and a larger trial is required to determine the efficacy of the service on young people’s symptom reduction.
Low‐Dimensional‐Networked Perovskites with A‐Site‐Cation Engineering for Optoelectronic Devices
Publisher: Wiley
Date: 25-01-2021
Abstract: Low‐dimensional‐networked (LDN) perovskites denote materials in which the molecular structure adopts 2D, 1D, or 0D arrangement. Compared to conventional 3D structured lead halide perovskite (chemical formula: ABX 3 where A: monovalent cations, B: alent cations, X: halides) that have been studied widely as light absorber and used in current state‐or‐the‐art solar cells, LDN perovskite have unique properties such as more flexible crystal structure, lower ion transport mobility, robust stability against environmental stress such as moisture, thermal, etc., making them attractive for applications in optoelectronic devices. Since 2014, reports on LDN perovskite materials used in perovskite solar cells, light emitting diodes (LEDs), luminescent solar concentrators (LSC), and photodetectors have been reported, aiming to overcome the obstacles of conventional 3DN perovskite materials in these optoelectronic devices. In this review, the variable ligands used to make LDN perovskite materials are summarized, their distinct properties compared to conventional 3D perovskite materials. The research progress of optoelectronic devices including solar cells, LEDs, LSCs, and photodetectors that used different LDNs perovskite, the roles and working mechanisms of the LDN perovskites in the devices are also demonstrated. Finally, key research challenges and outlook of LDN materials for various optoelectronic applications are discussed.
Towards lead-free perovskite photovoltaics and optoelectronics by ab-initio simulations
Publisher: Springer Science and Business Media LLC
Date: 04-04-0025
DOI: 10.1038/S41598-017-13172-Y
Abstract: Lead (Pb) free non-toxic perovskite solar cells have become more important in the commercialization of the photovoltaic devices. In this study the structural, electronic, optical and mechanical properties of Pb-free inorganic metal halide cubic perovskites CsBX 3 (B = Sn, Ge X = I, Br, Cl) for perovskite solar cells are simulated using first-principles Density Functional Theory (DFT). These compounds are semiconductors with direct band gap energy and mechanically stable. Results suggest that the materials have high absorption coefficient, low reflectivity and high optical conductivity with potential application in solar cells and other optoelectronic energy devices. On the basis of the optical properties, one can expect that the Germanium (Ge) would be a better replacement of Pb as Ge containing compounds have higher optical absorption and optical conductivity than that of Pb containing compounds. A combinational analysis of the electronic, optical and mechanical properties of the compounds suggests that CsGeI 3 based perovskite is the best Pb-free inorganic metal halide semiconductor for the solar cell application. However, the compound with solid solution of CsGe(I 0.7 Br 0.3 ) 3 is found to be mechanically more ductile than CsGeI 3 . This study will also guide to obtain Pb-free organic perovskites for optoelectronic devices.
E-health interventions for suicide prevention
Publisher: MDPI AG
Date: 12-08-2014
Three-Dimensional (3D) Nanostructured Skeleton Substrate Composed of Hollow Carbon Fiber/Carbon Nanosheet/ZnO for Stable Lithium Anode
Publisher: American Chemical Society (ACS)
Date: 05-01-2021
Electrochemical performances of Na2 MnSiO4 as an energy storage material in sodium-ion capacitors
Publisher: Springer Science and Business Media LLC
Date: 07-02-2017
Ultrafast near infrared sintering of TiO2 layers on metal substrates for dye‐sensitized solar cells
Publisher: Wiley
Date: 03-10-2010
DOI: 10.1002/PIP.1041
Characterization of interactions among 3-hydroxypropionitrile/LiI electrolytes
Publisher: The Electrochemical Society
Date: 2004
DOI: 10.1149/1.1789831
Tuning of oxygen vacancy in sputter-deposited SnOx films for enhancing the performance of perovskite solar cells
Publisher: Wiley
Date: 04-09-2018
Abstract: This work demonstrates the effect of oxygen vacancies in SnO
Smartphone Sensor Data for Identifying and Monitoring Symptoms of Mood Disorders: A Longitudinal Observational Study
Publisher: JMIR Publications Inc.
Date: 04-05-2022
DOI: 10.2196/35549
Abstract: Mood disorders are burdensome illnesses that often go undetected and untreated. Sensor technologies within smartphones may provide an opportunity for identifying the early changes in circadian rhythm and social support/connectedness that signify the onset of a depressive or manic episode. Using smartphone sensor data, this study investigated the relationship between circadian rhythm, which was determined by GPS data, and symptoms of mental health among a clinical s le of adults diagnosed with major depressive disorder or bipolar disorder. A total of 121 participants were recruited from a clinical setting to take part in a 10-week observational study. Self-report questionnaires for mental health outcomes, social support, social connectedness, and quality of life were assessed at 6 time points throughout the study period. Participants consented to passively sharing their smartphone GPS data for the duration of the study. Circadian rhythm (ie, regularity of location changes in a 24-hour rhythm) was extracted from GPS mobility patterns at baseline. Although we found no association between circadian rhythm and mental health functioning at baseline, there was a positive association between circadian rhythm and the size of participants’ social support networks at baseline (r=0.22 P=.03 R2=0.049). In participants with bipolar disorder, circadian rhythm was associated with a change in anxiety from baseline a higher circadian rhythm was associated with an increase in anxiety and a lower circadian rhythm was associated with a decrease in anxiety at time point 5. Circadian rhythm, which was extracted from smartphone GPS data, was associated with social support and predicted changes in anxiety in a clinical s le of adults with mood disorders. Larger studies are required for further validations. However, smartphone sensing may have the potential to monitor early symptoms of mood disorders.
Investigation of the electrochemical growth of a Cu–Zn–Sn film on a molybdenum substrate using a citrate solution
Publisher: Springer Science and Business Media LLC
Date: 11-05-2016
Ab initio atomistic insights into lead-free formamidinium based hybrid perovskites for photovoltaics and optoelectronics
Publisher: Elsevier BV
Date: 11-2019
Stakeholder perspectives on evidence for digital mental health interventions: Implications for accreditation systems
Publisher: SAGE Publications
Date: 2019
Abstract: Digital mental health interventions can be effective for treating mental health problems, but uptake by consumers and clinicians is not optimal. The lack of an accreditation pathway for digital mental health interventions is a barrier to their uptake among clinicians and consumers. However, there are a number of factors that may contribute to whether a digital intervention is suitable for recommendation to the public. The aim of this study was to identify the types of evidence that would support the accreditation of digital interventions. An expert workshop was convened, including researcher, clinician, consumer (people with lived experience of a mental health condition) and policymaker representatives. Existing methods for assessing the evidence for digital mental health interventions were discussed by the stakeholders present at the workshop. Empirical evidence from randomised controlled trials was identified as a key component for evaluating digital interventions. However, information on the safety of users, data security, user ratings, and fidelity to clinical guidelines, along with data from routine care including adherence, engagement and clinical outcomes, were also identified as important considerations when evaluating an intervention. There are considerable challenges in weighing the evidence for a digital mental health intervention. Empirical evidence should be the cornerstone of any accreditation system to identify appropriate digital mental health interventions. However, robust accreditation systems should also account for program and user safety, user engagement and experience, and fidelity to clinical treatment guidelines.
Tailoring Crystal Structure of FA0.83Cs0.17PbI3 Perovskite Through Guanidinium Doping for Enhanced Performance and Tunable Hysteresis of Planar Perovskite Solar Cells
Publisher: Wiley
Date: 14-11-2018
Free-standing amorphous nanoporous nickel cobalt phosphide prepared by electrochemically delloying process as a high performance energy storage electrode material
Publisher: Elsevier BV
Date: 02-2019
Fabrication of dual function disposable substrates for spectroelectrochemical nanosensing
Publisher: Elsevier BV
Date: 05-2019
Insight into lead-free organic-inorganic hybrid perovskites for photovoltaics and optoelectronics: A first-principles study
Publisher: Elsevier BV
Date: 08-2018
Adolescents’ Perspectives on a Mobile App for Relationships: Cross-Sectional Survey
Publisher: JMIR Publications Inc.
Date: 08-03-2018
DOI: 10.2196/MHEALTH.8831
Polymer-in-salt Like Conduction Behavior of Small-molecule Electrolytes
Publisher: Royal Society of Chemistry (RSC)
Date: 2004
DOI: 10.1039/B406493C
Abstract: Abnormal salt content dependence of conductivity is observed in solid electrolytes exclusively composed of small molecules of 3-hydroxypropionitrile (HPN) and lithium iodide (LiI) induced by reinforced hydrogen bonding and formation of ionic clusters at high salt content.
Inorganic p-type semiconductors and carbon materials based hole transport materials for perovskite solar cells
Publisher: Elsevier BV
Date: 08-2018
Sulfur-doped mesoporous carbon via thermal reduction of CS2 by Mg for high-performance supercapacitor electrodes and Li-ion battery anodes
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8RA01729H
Abstract: This paper demonstrates a facile method to produce S-doped porous carbon by exploiting the reaction between magnesium and carbon disulfide for supercapacitor and Li-ion battery applications.
Effect of different thermo-treatment at relatively low temperatures on the properties of indium‑tin-oxide thin films
Publisher: Elsevier BV
Date: 08-2017
Effect of Iodine Addition on Solid-State Electrolyte LiI/3-Hydroxypropionitrile (1:4) for Dye-Sensitized Solar Cells
Publisher: American Chemical Society (ACS)
Date: 03-2006
DOI: 10.1021/JP057121B
Abstract: It was observed that the ionic conductivity of the solid-state electrolyte LiI/3-hydroxypropionitrile (HPN) = 1:4 (molar ratio) decreased dramatically with increasing iodine (I(2)) concentration, which differs from the conduction behavior of the Grotthuss transport mechanism observed in liquid or gel electrolytes. The short-circuit photocurrent density (J(sc)) of the dye-sensitized solar cell (DSSC) based on this electrolyte system increases with increasing I(2) concentration until LiI/I(2) is 1:0.05 (molar ratio). Beyond this limitation, the J(sc) decreases. At low I(2) concentrations (I(2)/LiI 0.05), the factors, including the increased light absorption by the I(3)(-), the increased recombination of electrons at the photoanode with I(3)(-), and the reduced ionic conductivity of the electrolyte, lead to a decrease of J(sc). At the same time, the open-circuit voltage (V(oc)) of the DSSC decreases monotonically with the ratio of I(2)/LiI due to increased dark current in the DSSC. The increased absorption of visible light by the electrolyte, the enhanced dark current, and the reduced ionic conductivity of the electrolyte contribute to the performance variation of the corresponding solid-state DSSC with increasing I(2) concentration.
Crack-free perovskite layers for high performance and reproducible devices via improved control of ambient conditions during fabrication
Publisher: Elsevier BV
Date: 06-2017
Mental Health Screening in General Practices as a Means for Enhancing Uptake of Digital Mental Health Interventions: Observational Cohort Study
Publisher: JMIR Publications Inc.
Date: 16-09-2021
DOI: 10.2196/28369
Abstract: Digital mental health interventions stand to play a critical role in managing the mental health impact of the COVID-19 pandemic. Thus, enhancing their uptake is a key priority. General practitioners (GPs) are well positioned to facilitate access to digital interventions, but tools that assist GPs in identifying suitable patients are lacking. This study aims to evaluate the suitability of a web-based mental health screening and treatment recommendation tool (StepCare) for improving the identification of anxiety and depression in general practice and, subsequently, uptake of digital mental health interventions. StepCare screens patients for symptoms of depression (9-item Patient Health Questionnaire) and anxiety (7-item Generalized Anxiety Disorder scale) in the GP waiting room. It provides GPs with stepped treatment recommendations that include digital mental health interventions for patients with mild to moderate symptoms. Patients (N=5138) from 85 general practices across Australia were invited to participate in screening. Screening identified depressive or anxious symptoms in 43.09% (1428/3314) of patients (one-quarter were previously unidentified or untreated). The majority (300/335, 89.6%) of previously unidentified or untreated patients had mild to moderate symptoms and were candidates for digital mental health interventions. Although less than half were prescribed a digital intervention by their GP, when a digital intervention was prescribed, more than two-thirds of patients reported using it. Implementing web-based mental health screening in general practices can provide important opportunities for GPs to improve the identification of symptoms of mental illness and increase patient access to digital mental health interventions. Although GPs prescribed digital interventions less frequently than in-person psychotherapy or medication, the promising rates of uptake by GP-referred patients suggest that GPs can play a critical role in ch ioning digital interventions and maximizing the associated benefits.
Adolescents� Perspectives on a Mobile App for Relationships: Cross-Sectional Survey
Publisher: JMIR Publications Inc.
Date: 25-08-2017
A cluster randomised controlled trial of a web-based youth mental health service in Australian schools
Publisher: Elsevier BV
Date: 07-2021
Mn3O4 Quantum Dots Supported on Nitrogen-Doped Partially Exfoliated Multiwall Carbon Nanotubes as Oxygen Reduction Electrocatalysts for High-Performance Zn–Air Batteries
Publisher: American Chemical Society (ACS)
Date: 27-06-2018
Abstract: Highly efficient and low-cost nonprecious metal electrocatalysts that favor a four-electron pathway for the oxygen reduction reaction (ORR) are essential for high-performance metal-air batteries. Herein, we show an ultrasonication-assisted synthesis method to prepare Mn
Factors That Help and Hinder the Implementation of Digital Depression Prevention Programs: School-Based Cross-sectional Study
Publisher: JMIR Publications Inc.
Date: 27-08-2021
DOI: 10.2196/26223
Abstract: Digital prevention programs that are delivered in a school environment can inoculate young people against depression. However, little is known about the school-based factors that help and hinder the implementation of these programs. Staff members are integral for supporting mental health programs in schools and are likely to have a wealth of expertise and knowledge about the factors that affect implementation. The primary objective of this study was to explore the barriers and facilitators to implementing a digital depression prevention program in Australian secondary schools with teachers, counselors, and principals. The secondary objective was to explore variations in these factors across different school contexts, including the school type (government or nongovernment), location (capital city, regional/or rural areas), and socioeconomic status (SES) (low, medium, high). This quantitative cross-sectional survey study assessed the barriers and facilitators to implementing a hypothetical digital prevention program in Australian schools. The survey was taken by 97 teachers (average age 38.3 years), 93 counselors (average age 39.5 years), and 11 principals (average age 50.9 years) across Australia between November 2017 and July 2018. A range of barriers and facilitators relating to logistics and resources, staff support, and program factors were endorsed by the surveyed staff. Consistent with prior research, common barriers included a lack of time and resources (ie, staff and rooms). These barriers were particularly evident in government, rural/regional, and low socioeconomic schools. Other barriers were specific to digital delivery, including privacy issues and a lack of clarity around staff roles and responsibilities. Facilitators included upskilling staff through training, embedding the program into the curriculum, and other program factors including universal delivery, screening of students’ mental health, and clear referral pathways. Knowledge about the program efficacy was also perceived as important by a large proportion of the respondents. The digital depression prevention program was perceived as suitable for use within different schools in Australia, although certain factors need to be considered to enable effective implementation. Logistics and resources, support, and program factors were identified as particularly important for school-based implementation. To maximize the effectiveness in delivering digital programs, implementation may need to be tailored to the staff roles and school types.
Boosting the cycling stability of transition metal compounds-based supercapacitors
Publisher: Elsevier BV
Date: 2019
Ion transport in small-molecule electrolytes based on LiI/3-hydroxypropionitrile with high salt contents
Publisher: Elsevier BV
Date: 2007
Influence of electrolyte cations on electron transport and electron transfer in dye-sensitized solar cells
Publisher: American Chemical Society (ACS)
Date: 02-05-2012
DOI: 10.1021/JP211807W
Dimensionality-Controlled Surface Passivation for Enhancing Performance and Stability of Perovskite Solar Cells via Triethylenetetramine Vapor
Publisher: American Chemical Society (ACS)
Date: 10-01-2020
Abstract: Perovskite solar cells (PSCs) have achieved unprecedented progress in terms of enhancement of power conversion efficiency (PCE). Nevertheless, device stability is still an obstacle to the commercialization of this emerging photovoltaic technology. Though strategies such as compositional management and ligand engineering have been reported to tackle this critical issue, these methods often have drawbacks such as compromised device performance. Herein, we propose an approach combining material dimensionality control and interfacial passivation by a post-device treatment via triethylenetetramine (TETA) vapor to enhance both efficiency and stability of Cs
The effectiveness of an online e-health application compared to attention placebo or Sertraline in the treatment of Generalised Anxiety Disorder
Publisher: Elsevier BV
Date: 10-2014
Evaluation of particle beam lithography for fabrication of metallic nano-structures
Publisher: Elsevier BV
Date: 2019
Towards the environmentally friendly solution processing of metal halide perovskite technology
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1GC01756J
Abstract: This article provides an overview of the research on green solvent alternatives for perovskite technology, with a fundamental discussion and analysis of the relationship between solvents, molecular ligands, and perovskite material properties.
Preface: Innovative electrode materials for supercapacitors
Publisher: Springer Science and Business Media LLC
Date: 02-2018
Free-standing NiCo2S4@VS2 nanoneedle array composite electrode for high performance asymmetric supercapacitor application
Publisher: Elsevier BV
Date: 1
Carbon concentration dependent grain growth of Cu2ZnSnS4 thin films
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C4RA16447D
Abstract: Influence of carbon on the grain growth of CZTS nanocrystals during high temperature annealing.
Cerium Based Metal–Organic Frameworks as an Efficient Separator Coating Catalyzing the Conversion of Polysulfides for High Performance Lithium–Sulfur Batteries
Publisher: American Chemical Society (ACS)
Date: 18-02-2019
Abstract: In this work, we demonstrate cerium (Ce) based metal-organic frameworks (MOFs) combined with carbon nanotubes (CNTs) to form Ce-MOF/CNT composites as separator coating material in the Li-S battery system, which showed excellent electrochemical performance even under high sulfur loading and much better capacity retention. At the sulfur loading of 2.5 mg/cm
Octadecylamine‐Functionalized Single‐Walled Carbon Nanotubes for Facilitating the Formation of a Monolithic Perovskite Layer and Stable Solar Cells
Publisher: Wiley
Date: 17-01-2018
The effect of a therapeutic smartphone application on suicidal ideation in young adults: Findings from a randomized controlled trial in Australia
Publisher: Public Library of Science (PLoS)
Date: 31-05-2022
DOI: 10.1371/JOURNAL.PMED.1003978
Abstract: Suicidal ideation is a major risk for a suicide attempt in younger people, such that reducing severity of ideation is an important target for suicide prevention. Smartphone applications present a new opportunity for managing ideation in young adults however, confirmatory evidence for efficacy from randomized trials is lacking. The objective of this study was to assess whether a therapeutic smartphone application (“LifeBuoy”) was superior to an attention-matched control application at reducing the severity of suicidal ideation. In this 2-arm parallel, double-blind, randomized controlled trial, 455 young adults from Australia experiencing recent suicidal ideation and aged 18 to 25 years were randomly assigned in a 2:2 ratio to use a smartphone application for 6 weeks in May 2020, with the final follow-up in October 2020. The primary outcome was change in suicidal ideation symptom severity scores from baseline (T0) to postintervention (T1) and 3-month postintervention follow-up (T2), measured using the Suicidal Ideation Attributes Scale (SIDAS). Secondary outcomes were symptom changes in depression (Patient Health Questionnaire-9, PHQ-9), generalized anxiety (Generalized Anxiety Disorder-7, GAD-7), distress (Distress Questionnaire-5, DQ5), and well-being (Short Warwick–Edinburgh Mental Well-Being Scale, SWEMWBS). This trial was conducted online, using a targeted social media recruitment strategy. The intervention groups were provided with a self-guided smartphone application based on dialectical behavior therapy (DBT “LifeBuoy”) to improve emotion regulation and distress tolerance. The control group were provided a smartphone application that looked like LifeBuoy (“LifeBuoy-C”), but delivered general (nontherapeutic) information on a range of health and lifestyle topics. Among 228 participants randomized to LifeBuoy, 110 did not complete the final survey among 227 participants randomized to the control condition, 91 did not complete the final survey. All randomized participants were included in the intent-to-treat analysis for the primary and secondary outcomes. There was a significant time × condition effect for suicidal ideation scores in favor of LifeBuoy at T1 ( p 0.001, d = 0.45) and T2 ( p = 0.007, d = 0.34). There were no superior intervention effects for LifeBuoy on any secondary mental health outcomes from baseline to T1 or T2 [ p -values: 0.069 to 0.896]. No serious adverse events (suicide attempts requiring medical care) were reported. The main limitations of the study are the lack of s le size calculations supporting the study to be powered to detect changes in secondary outcomes and a high attrition rate at T2, which may lead efficacy to be overestimated. LifeBuoy was associated with superior improvements in suicidal ideation severity, but not secondary mental health outcomes, compared to the control application, LifeBuoy-C. Digital therapeutics may need to be purposefully designed to target a specific health outcome to have efficacy. Australian New Zealand Clinical Trials Registry ACTRN12619001671156
Are Metal Halide Perovskite Solar Cells Ready for Space Applications?
Publisher: American Chemical Society (ACS)
Date: 25-03-2022
DOI: 10.1021/ACS.JPCLETT.2C00386
Abstract: The appeal of metal halide perovskite solar cells (PSCs) has been widely demonstrated in the field of photovoltaic technology. On account of the excellent optical and electrical properties, as well as compatibility with flexible substrates, the PSCs also hold the highest record of specific power for lightweight solar cell devices, suggesting excellent promise in space applications. Hence, there is increasing interest in the performance of PSCs in space environments where radiation beams and thermal cycling can cause extreme stress on the devices. In this Perspective, we provide a brief summary of the research on PSCs for space applications. The radiation tolerance and thermal stability of PSCs and the fundamental mechanisms are discussed and analyzed. Key challenges facing PSC technology toward future space applications are demonstrated. This Perspective features the prospect of PSCs as the next frontier in space PV technology.
Dopant-free novel hole-transporting materials based on quinacridone dye for high-performance and humidity-stable mesoporous perovskite solar cells
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C8TA11361K
Abstract: A series of novel pristine hole-transporting materials based on a quinacridone (QA) dye have been developed and used to fabricate mesoporous perovskite solar cells for the first time achieving an efficiency of 18.2%.
Metallic nanomesh with disordered dual-size apertures as wide-viewing-angle transparent conductive electrode
Publisher: American Chemical Society (ACS)
Date: 23-08-2016
Abstract: With the rapid development of display-related markets, transparent conductive films (TCFs) with wide viewing angles, high transmittance and low sheet resistance are in high demand. However, as a promising TCF material, metallic membranes with a submicrometer-sized periodicity pattern fabricated by currently available techniques always reveal the angle-dependent structure color which can be a major issue in the development of wide-angle viewing display-related applications. In this work, we demonstrate an Au nanomesh with disordered dual-size apertures as a novel TCF with wide viewing angles which is made via a modified nanosphere lithography technique. The as-prepared Au nanomesh film shows good optoelectronic properties (Rs = 160 Ω sq(-1), T = 80% Rs = 8 Ω sq(-1), T = 57%) that are similar to the Au nanomesh with single size apertures, while the former exhibits excellent wide-angle viewing performance. There is no obvious change in the film when the viewing angle, the light incidence angle or the orientation of substrate vary in the range of 0-90°. In contrast, a rainbow color is observed with the film with ordered single-size apertures. Electrochromic devices based on the novel metallic film show more uniform color distribution than the devices based on metallic film with ordered single-size apertures under indoor natural light irradiation. These findings demonstrate the applicability of the Au nanomesh film with dual-size apertures in enhancing display quality of high-performance optoelectronic devices.
Unraveling the Mechanism of Alkali Metal Fluoride Post‐Treatment of SnO2 for Efficient Planar Perovskite Solar Cells
Publisher: Wiley
Date: 22-06-2023
Abstract: The facile synthesis and beneficial properties of tin oxide have driven the development of efficient planar perovskite solar cells (PSCs). To increase the PSC performance, alkali salts are used to treat the SnO 2 surface to minimize the defect states. However, the underlying mechanism of alkali cations' role in the PSCs needs further exploration. Herein the effect of alkali fluoride salts (KF, RbF, and CsF) on the properties of SnO 2 and PSC performance is investigated. The results show different alkali have significant roles depending on their nature. Larger cations Cs + preferably locate at the SnO 2 film surface to passivate surface defects and enhance conductivity, while smaller cations like Rb + or K + cations tend to diffuse into the perovskite layer to reduce trap density of the material. The former effect leads to enhanced fill factor while the latter effect increases the open circuit voltage of the device. It is then demonstrated that a dual cation post‐treatment of the SnO 2 layer with RbF and CsF achieves PSC with a significantly higher power conversion efficiency (PCE) of 21.66% compared to pristine PSC with a PCE of 19.71%. This highlights the significance of defect engineering of SnO 2 using selective multiple alkali treatment to improve PSC performance.
2D–3D Mixed Organic–Inorganic Perovskite Layers for Solar Cells with Enhanced Efficiency and Stability Induced by n-Propylammonium Iodide Additives
Publisher: American Chemical Society (ACS)
Date: 28-05-2019
Abstract: Device instability has become an obstacle for the industrial application of organic-inorganic metal halide perovskite solar cells that has already demonstrated over 23% laboratory power conversion efficiency (PCE). It has been discovered that the sliding of A-site cations in the perovskite compound through and out of the three-dimensional [PbI
Facile synthesis of Sb2S3/MoS2 heterostructure as anode material for sodium-ion batteries
Publisher: IOP Publishing
Date: 08-06-2018
Abstract: A novel Sb
On the growth process of Cu2ZnSn(S,Se)4 absorber layer formed by selenizing Cu–ZnS–SnS precursors and its photovoltaic performance
Publisher: Elsevier BV
Date: 2015
Is e-health the answer to gaps in adolescent mental health service provision?
Publisher: Ovid Technologies (Wolters Kluwer Health)
Date: 07-2015
Determination of Dimethyl Sulfide in Gas Samples by Single Photon Ionization Time of Flight Mass Spectrometry
Publisher: Informa UK Limited
Date: 03-07-2014
Metal oxide/graphene composite anode materials for sodium-ion batteries
Publisher: Elsevier BV
Date: 2019
Novel fabrication of Ni3S2/MnS composite as high performance supercapacitor electrode
Publisher: Elsevier BV
Date: 10-2017
A randomised controlled trial of a relationship‐focussed mobile phone application for improving adolescents’ mental health
Publisher: Wiley
Date: 19-07-2020
DOI: 10.1111/JCPP.13294
Size-dependent photodegradation of CdS particles deposited onto TiO2 mesoporous films by SILAR method
Publisher: Springer Science and Business Media LLC
Date: 31-08-2012
Facile synthesis of MSnO3 (M=Mn, Co, Zn)/reduced graphene oxide nanocomposites as anode materials for sodium-ion batteries
Publisher: Elsevier BV
Date: 05-2019
Interlaboratory study assessing the analysis of supercapacitor electrochemistry data
Publisher: Elsevier BV
Date: 11-2023
Lithium bis(trifluoromethanesulfonyl)imide assisted dual-functional separator coating materials based on covalent organic frameworks for high-performance lithium–selenium sulfide batteries
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9TA04614C
Abstract: COFs with selective adsorption of LiTFSI may serve as a bifunctional separator coating material for high-performance Li–SeS 2 cells.
Effectiveness of an online insomnia program (SHUTi) for prevention of depressive episodes (the GoodNight Study): a randomised controlled trial
Publisher: Elsevier BV
Date: 04-2016
Enlarging Surface/Bulk Ratios of NiO Nanoparticles toward High Utilization and Rate Capability for Supercapacitors
Publisher: Wiley
Date: 18-11-2019
Facile synthesis of Sb/CNT nanocomposite as anode material for sodium-ion batteries
Publisher: World Scientific Pub Co Pte Lt
Date: 10-2018
DOI: 10.1142/S1793604718500042
Abstract: Sb/carbon nanotubes (CNT) nanocomposite was synthesized by a facile chemical refluxing method. Investigation of the electrochemical performance of the composite which was used as an anode material in sodium-ion batteries shows that the Sb/CNT nanocomposite possessed an initial capacity of 628.6[Formula: see text]mAh g[Formula: see text]. The nanocomposite exhibited excellent rate performance with 90.8% capacity retention after 50 cycles, which is superior to that of Sb nanoparticles that were made under the same condition.
Aqueous alkaline–acid hybrid electrolyte for zinc-bromine battery with 3V voltage window
Publisher: Elsevier BV
Date: 05-2019
Low hysteresis perovskite solar cells using e-beam evaporated WO3-x thin film as electron transport layer
Publisher: American Chemical Society (ACS)
Date: 24-06-2019
Earth-abundant amorphous catalysts for electrolysis of water
Publisher: Elsevier BV
Date: 06-2017
Effects of TiCl4treatment on the performance of CdSe/CdS-sensitised solar cells
Publisher: SPIE
Date: 09-08-2013
DOI: 10.1117/12.2026664
Electronic and optical properties of lead-free hybrid double perovskites for photovoltaic and optoelectronic applications
Publisher: Springer Science and Business Media LLC
Date: 24-01-2019
DOI: 10.1038/S41598-018-37132-2
Abstract: Developing of lead-free double perovskites have drawn significant interest for photovoltaics and optoelectronics as the materials have the potential to avoid toxicity and instability issues associated with lead-based organometallic perovskites. In this study, we report the optoelectronic properties of a new group of non-toxic lead-free organic-inorganic halide double perovskites composed of caesium (Cs), methylammonium (MA) or formamidinium (FA) with bismuth (Bi) and metal copper (Cu). We perform density functional theory investigations to calculate the structural, electronic and optical properties of 18 Pb-free compounds, ABiCuX 6 [A = Cs 2 , (MA) 2 , (FA) 2 , CsMA, CsFA, MAFA X = I, Br, Cl] to predict their suitability in photovoltaic and optoelectronic applications. We found that the considered compounds are semiconductors with a tunable band gap characteristics that are suitable for some devices like light emitting diodes. In addition to this, the high dielectric constant, high absorption, high optical conductivity and low reflectivity suggest that the materials have the potential in a wide range of optoelectronic applications including solar cells. Furthermore, we predict that the organic-inorganic hybrid double perovskite (FA) 2 BiCuI 6 is the best candidate in photovoltaic and optoelectronic applications as the material has superior optical and electronic properties.
We Feel: Mapping Emotion on Twitter
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 07-2015
Improving the performance of arylamine-based hole transporting materials in perovskite solar cells: Extending π-conjugation length or increasing the number of side groups?
Publisher: Elsevier BV
Date: 09-2018
Size-dependent capacitive behavior of homogeneous MnO nanoparticles on carbon cloth as electrodes for symmetric solid-state supercapacitors with high performance
Publisher: Elsevier BV
Date: 06-2019
Spectroscopic Insight into Efficient and Stable Hole Transfer at the Perovskite/Spiro-OMeTAD Interface with Alternative Additives
Publisher: American Chemical Society (ACS)
Date: 20-01-2021
How reliable are efficiency measurements of perovskite solar cells? The first inter-comparison, between two accredited and eight non-accredited laboratories
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7TA05609E
Abstract: Towards improved reliability and relevance of indoor measurements of efficiency of perovskite solar cells.
Precisely controlled synthesis of high quality kesterite Cu 2 ZnSnS 4 thin film via co-electrodeposited cuznsn alloy film
Publisher: American Scientific Publishers
Date: 06-2016
Abstract: In this work, a facile co-electrodeposition method was used to fabricate CuZnSn alloy films where the content of copper, zinc and tin could be precisely controlled through manipulating the mass transfer process in the electrochemical deposition. By finely tuning the concentration of the cations of Cu2+, Zn2+ and Sn2+ in the electrochemical bath solution, uniform CuZnSn film with desired composition of copper poor and zinc rich was made. Sulphurisation of the CuZnSn alloy film led to the formation of compact and large grains Cu2ZnSnS4 thin film absorber with an optimum composition of Cu/(Zn+Sn) ≈ 0.8, Zn/Sn ≈ 1.2. Both SEM morphology and EDS mapping results confirmed the uniformity of the CuZnSn and Cu2ZnSnS4 films and the homogeneous distribution of Cu, Zn, Sn and S elements in the bulk films. The XRD and Raman measurements indicated that the synthesized Cu2ZnSnS4 film was kesterite phase without impurities detected. Photoelectrochemical tests were carried out to evaluate the CZTS film's photocurrent response under illumination of green light.
Ultrathin NiCo2S4@graphene with a core–shell structure as a high performance positive electrode for hybrid supercapacitors
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8TA00835C
Abstract: Herein we demonstrate a facile method for the synthesis of a NiCo 2 S 4 /graphene composite where NiCo 2 S 4 is encapsulated with an ultrathin graphene layer to form a core/shell structure (NiCo 2 S 4 @G).
Efficiency enhancement of Cu2ZnSnS4 thin film solar cells by chromium doping
Publisher: Elsevier BV
Date: 10-2019
Molecular Engineering of Simple Benzene–Arylamine Hole-Transporting Materials for Perovskite Solar Cells
Publisher: American Chemical Society (ACS)
Date: 11-08-2017
Abstract: Three benzene-arylamine hole-transporting materials (HTMs) with different numbers of terminal groups were prepared. It is noted that the molecule with three arms (H-Tri) shows a lower highest occupied molecular orbital level and a better film morphology on perovskite layer than the molecules with two or four arms (H-Di, H-Tetra). When these molecules were applied to the perovskite solar cells, the H-Tri-based one showed better performance compared with the H-Di- or H-Tetra-based ones. Photoluminescence and impedance spectroscopy demonstrate that H-Tri can improve the hole-electron separation efficiency and decrease the charge recombination, thus leading to a better performance. Moreover, the H-Tri-based device shows a comparable performance and a much less materials cost than the conventional spiro-OMeTAD. Therefore, we have presented a new low-cost and high-performance HTM through simple molecular engineering.
Perovskite Solar Cells Based on Nanocrystalline SnO2 Material with Extremely Small Particle Sizes
Publisher: CSIRO Publishing
Date: 2015
DOI: 10.1071/CH15245
Abstract: In this work, we report the synthesis of SnO2 nanocrystalline material and its application in perovskite solar cells. The material has been characterised comprehensively by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, selected area diffraction, and N2 adsorption analysis. The results have revealed that the average particle size of the SnO2 material was less than 3 nm, resulting in a large specific surface area of 173.9 m2 g–1. The investigation of the material in perovskite solar cells as electron-transport layer showed that pure SnO2 material did not favour the photovoltaic performance of the device. The best solar cell obtained with one layer of SnO2 film (22 nm) showed an energy conversion efficiency of 2.19 % under an illumination intensity of 100 mW cm–2. Beyond this thickness, the performance of the solar cells decreased significantly with increasing thickness of the SnO2 film due to a dramatic decrease in the photocurrent density. Nevertheless, it has been found that SnO2 material containing a small amount of metal tin (1.3 %) significantly improved the performance of the solar cell to 8.7 %. The possible reason for this phenomenon has been discussed based on the consideration of the energy band alignment of materials in the perovskite solar cells.
A highly efficient electrocatalyst based on amorphous Pd–Cu–S material for hydrogen evolution reaction
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7TA05314B
Abstract: Hydrogen evolution reactions (HER) through water splitting draws tremendous attention as a way for generating clean energy.
Multi-biofunctional properties of three species of cicada wings and biomimetic fabrication of nanopatterned titanium pillars
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C8TB03295E
Abstract: Inspired by the surface topography of cicada wings, Ti nanopillars were fabricated. The fabricated surfaces were bactericidal and cytocompatible.
Fast Hole Surface Conduction Observed for Indoline Sensitizer Dyes Immobilized at Fluorine-Doped Tin Oxide−TiO2 Surfaces
Publisher: American Chemical Society (ACS)
Date: 23-06-2010
DOI: 10.1021/JP103808U
Strain Mediated Bandgap Reduction, Light Spectrum Broadening, and Carrier Mobility Enhancement of Methylammonium Lead/Tin Iodide Perovskites
Publisher: Wiley
Date: 24-01-2017
Phase-selective hydrothermal synthesis of Cu2ZnSnS4 nanocrystals: the effect of the sulphur precursor
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C3CE42606H
Abstract: CZTS thin films with uniform thickness and homogeneous composition for generation of a stable photocurrent were made using one-step hydrothermal synthesis.
Boosting Capacitive Sodium-Ion Storage in Electrochemically Exfoliated Graphite for Sodium-Ion Capacitors
Publisher: American Chemical Society (ACS)
Date: 13-11-2020
Hindered Formation of Photoinactive δ-FAPbI
Publisher: American Chemical Society (ACS)
Date: 11-04-2018
DOI: 10.1021/ACS.JPCLETT.8B00830
Abstract: Organic-inorganic hybrid lead halide perovskite solar cells have demonstrated competitive power conversion efficiency over 22% nevertheless, critical issues such as unsatisfactory device stability, serious current-voltage hysteresis, and formation of photo nonactive perovskite phases are obstacles for commercialization of this photovoltaics technology. Herein we report a facial yet effective method to hinder formation of photoinactive δ-FAPbI
Highly accessible hierarchical porous carbon from a bi-functional ionic liquid bulky gel: high-performance electrochemical double layer capacitors
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9TA07820G
Abstract: The graphene-based hierarchical porous carbon GGI has high surface area, dual-doping, micro/meso-pores and exhibits good compatibility with the ionic liquid electrolyte EmimTFSI.
Pseudocapacitance contribution in boron-doped graphite sheets for anion storage enables high-performance sodium-ion capacitors
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8MH00156A
Abstract: The high pseudocapacitance contribution in boron-doped graphite sheets for anion storage is demonstrated, and then utilized to fabricate Na-ion hybrid capacitors.
An ultraviolet selective photodetector based on a nanocrystalline TiO2 photoelectrochemical cell
Publisher: Elsevier BV
Date: 11-2011
Size control of Cu2 ZnSnS4 (CZTS) nanocrystals in the colloidal medium synthesis
Publisher: SPIE
Date: 09-08-2013
DOI: 10.1117/12.2026592
The Building Educators’ Skills in Adolescent Mental Health Training Program for Secondary School Educators: Protocol for a Cluster Randomized Controlled Trial (Preprint)
Publisher: JMIR Publications Inc.
Date: 18-11-2020
Abstract: n Australia, secondary school educators are well positioned to recognize mental illness among students and provide support. However, many report that they lack the knowledge and confidence to do so, and few mental health training programs available for educators are evidence based. To address this gap, the Black Dog Institute (BDI) developed a web-based training program (Building Educators’ Skills in Adolescent Mental Health [BEAM]) that aims to improve mental health knowledge, confidence, and helping behaviors among secondary school educators in leadership positions. A pilot study of the training program found it to be positively associated with increased confidence and helping behaviors among educators and reduced personal psychological distress. An adequately powered randomized controlled trial (RCT) is needed. he primary objective of this cluster RCT is to evaluate the effectiveness of the BEAM program for improving educators’ confidence in managing student mental health. The trial will also evaluate the effect of the BEAM program in increasing educators’ frequency of providing help to students and improving their mental health knowledge and reducing educators’ psychological distress and stigma toward students with mental health issues. he target s le size is 234 educators from 47 secondary schools across New South Wales, Australia. Four waves of recruitment and enrollment into the trial are planned. Schools will participate in one wave only and will be randomized to the intervention or waitlist control conditions. Participants from the same school will be assigned to the same condition. Assessments will be conducted at baseline, posttest (10 weeks after baseline), and follow-up (22 weeks after baseline) using the BDI eHealth research platform. Intervention participants will receive access to the BEAM program for 10 weeks upon completion of baseline, and the control condition will receive access for 10 weeks upon completion of the follow-up assessment. ecruitment for this trial began on July 21, 2020, with the first baseline assessments occurring on August 17, 2020. To date, 295 participants from 71 schools have completed baseline. Due to the unexpected success of recruitment in the first 3 waves, the final fourth wave has been abandoned. Intervention participants are currently receiving the program, with follow-up due for completion in March 2021. his is one of the first RCTs to examine the effectiveness of a web-based adolescent mental health training program for Australian secondary school educators in leadership positions. If found to be effective, this training program will offer a sustainable and scalable delivery method for upskilling educators in caring for students’ mental health. ustralian New Zealand Clinical Trials Registry ACTRN12620000876998 tudies/crs-14669208 ERR1-10.2196/25870
Examining the Preliminary Effectiveness and Acceptability of a Web-Based Training Program for Australian Secondary School Teachers: Pilot Study of the BEAM (Building Educators’ Skills in Adolescent Mental Health) Program
Publisher: JMIR Publications Inc.
Date: 22-10-2021
DOI: 10.2196/29989
Abstract: Secondary schools are increasingly supporting adolescents’ mental health and well-being, yet many teachers report that they lack the skills and confidence to do so. Building Educators’ skills in Adolescent Mental Health (BEAM) is a web-based training program developed to improve secondary school teachers’ knowledge and confidence in caring for students’ mental health. This pilot study examined the preliminary effectiveness and acceptability of the BEAM program for improving mental health knowledge, attitudes, confidence, helping behaviors, and psychological distress among secondary school teachers. A single-arm pilot trial was conducted from July to December 2019 among secondary school teachers located in New South Wales, Australia, who were employed in leadership positions responsible for managing student well-being (ie, Year Advisors). Participants had access to the BEAM program for 6 weeks. Self-report surveys, delivered at baseline, postintervention (6-weeks post baseline) and 3-month follow-up (19 weeks post baseline) were used to measure changes in training outcomes. Acceptability was assessed by program use, barriers, satisfaction, and participants’ perceptions of program effectiveness. A total of 70 secondary school teachers took part (mean age 36.5 years, SD 9.41 years, range 24-60 years). Significant improvements in confidence were reported at postintervention and 3-month follow-up. Significant improvements in helping behaviors were reported at 3-month follow-up only. There was also a significant reduction in psychological distress at postintervention. Participants agreed that the program content was easy to understand and relevant, but program completion was challenged by lack of time, competing priorities, and forgetfulness. Findings indicated that a web-based training program may be beneficial for improving secondary school teachers’ abilities to care for students’ mental health however, program modifications are required to increase training completions. Australian New Zealand Clinical Trials Registry (ANZCTR) ACTRN12619000821190, Universal Trial Number U1111-1232-7680 www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=377529
CuCo2 S4 /reduced graphene oxide nanocomposites synthesized by one-step solvothermal method as anode materials for sodium ion batteries
Publisher: Elsevier BV
Date: 12-2018
A zinc bromine “supercapattery” system combining triple functions of capacitive, pseudocapacitive and battery-type charge storage
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/C9MH01353A
Abstract: A dual-redox-additive-enhanced Zn–Br 2 “supercapattery” is demonstrated with battery-level energy density and capacitor-level power density.
Enhanced visible-light-driven photocatalytic performance of Ag/AgGaO2 metal semiconductor heterostructures
Publisher: Elsevier BV
Date: 04-2017
All-solid-state flexible asymmetric supercapacitors with high energy and power densities based on NiCo2 S4 @MnS and active carbon
Publisher: Elsevier BV
Date: 11-2017
Contested Spatialities, Lifestyle Migration and Residential Tourism
Publisher: Routledge
Date: 22-08-2013
Synthesis of Co Ni1-S2 electrode material with a greatly enhanced electrochemical performance for supercapacitors by in-situ solid-state transformation
Publisher: Elsevier BV
Date: 09-2019
Using Sparse Representation to Detect Anomalies in Complex WSNs
Publisher: Association for Computing Machinery (ACM)
Date: 30-10-2019
DOI: 10.1145/3331147
Abstract: In recent years, wireless sensor networks (WSNs) have become an active area of research for monitoring physical and environmental conditions. Due to the interdependence of sensors, a functional anomaly in one sensor can cause a functional anomaly in another sensor, which can further lead to the malfunctioning of the entire sensor network. Existing research work has analysed faulty sensor anomalies but fails to show the effectiveness throughout the entire interdependent network system. In this article, a dictionary learning algorithm based on a non-negative constraint is developed, and a sparse representation anomaly node detection method for sensor networks is proposed based on the dictionary learning. Through experiment on a specific thermal power plant in China, we verify the robustness of our proposed method in detecting abnormal nodes against four state of the art approaches and proved our method is more robust. Furthermore, the experiments are conducted on the obtained abnormal nodes to prove the interdependence of multi-layer sensor networks and reveal the conditions and causes of a system crash.
Highly efficient dye-sensitized solar cells using a composite electrolyte consisting of LiI(CH3 OH)4 -I2 , SiO2 nano-particles and an ionic liquid
Publisher: IOP Publishing
Date: 04-08-2004
An alternative ionic liquid based electrolyte for dye-sensitized solar cells
Publisher: Springer Science and Business Media LLC
Date: 10-2004
DOI: 10.1039/B412647E
Novel ruthenium bipyridyl dyes with S-donor ligands and their application in dye-sensitized solar cells
Publisher: Elsevier BV
Date: 02-2009
Optical design of dye-sensitized nanocrystalline solar cells
Publisher: IOP Publishing
Date: 07-2004
Acene-based organic semiconductors for organic light-emitting diodes and perovskite solar cells
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8TC01956H
Abstract: A series of strong electron-rich small molecules based on acenes were designed and synthesized for application in green/blue organic light-emitting diodes and perovskite solar cells.
Investigation of mechanical properties and morphology of hydrothermally manufactured titanium dioxide nanostructured surfaces
Publisher: Elsevier BV
Date: 2019
Layered tin sulfide and selenide anode materials for Li- and Na-ion batteries
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8TA02695E
Abstract: In this review, we report the recent research progress in the area of design and synthesis of tin sulfide and selenide (SnS, SnS 2 , SnSe, and SnSe 2 ) based anode materials for Li-ion batteries and Na-ion batteries.
Fluorine substitution enabling pseudocapacitive intercalation of sodium ions in niobium oxyfluoride
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9TA07320E
Abstract: A collaborative materials engineering of an orthorhombic niobium oxyfluoride/carbon nanobelt anode provides enhanced sodium-ion storage through a combination of pseudocapacitive intercalation and conversion mechanisms.
Inorganic Aqueous Anionic Redox Liquid Electrolyte for Supercapacitors
Publisher: Wiley
Date: 12-09-2021
Abstract: Energy storage system based on supercapacitors is known for its high power density but suffers low energy density. To address this issue, aqueous anionic redox liquid electrolyte (AARLE) has been explored to enhance the energy density of supercapacitors by taking advantage of AARLE's favorable features including fast transport of ions in the liquid medium and electrochemical charge transfer of the redox couple in the liquid electrolyte, which is expected to produce supercapacitors with desirable high density of energy and power. The past few years have witnessed the progress of AARLE in energy storage applications such as supercapacitors. Given the significant potential of AARLE in supercapacitors, in this article, the application of AARLE in different types of supercapacitors, including electrical double‐layer capacitors, pseudocapacitors, and asymmetric supercapacitors is reviewed. The performance of the supercapacitors that utilize AARLE with representative redox couple species such as Br − /Br 3 − , I − /I 3 − , I 2 /IO 3 − , S 2− /S x 2− , Fe(CN) 6 4− /Fe(CN) 6 3− is summarized and systematically analyzed in terms of specific capacitance, energy density, power density, and cycling stability. The underlying mechanism of these representative anionic redox species is shown in supercapacitors. The advantages and disadvantages of each of these anionic redox species are discussed regarding delivering stable supercapacitors with high energy density and power density for practical applications. Finally, the challenge and opportunity of AARLE for supercapacitors are presented. It is hoped that this timely review on this critical topic can offer a new perspective for developing high‐performance supercapacitors by taking advantage of the anionic redox charge storage in the liquid electrolytes in the future.
Solid-State Composite Electrolyte LiI/3-Hydroxypropionitrile/SiO2 for Dye-Sensitized Solar Cells
Publisher: American Chemical Society (ACS)
Date: 12-04-2005
DOI: 10.1021/JA043268P
Abstract: A new compound, LiI(3-hydroxypropionitrile)(2), is reported here. According to its single-crystal structure (C2/c), this compound has 3-D transporting paths for iodine. Further ab initio calculation shows that the activation energy for diffusion of iodine (0.73 eV) is much lower than that of lithium ion (8.39 eV) within the lattice. Such a mono-ion transport feature is favorable as solid electrolyte to replace conventional volatile organic liquid electrolytes used in dye-sensitized solar cells (DSSC). LiI and 3-hydroxypropionitrile (HPN) can form a series of solid electrolytes. The highest ambient conductivity is 1.4 x 10(-)(3) S/cm achieved for LiI(HPN)(4). However, it tends to form large crystallites and leads to poor filling and contact within porous TiO(2) electrodes in DSSC. Such a drawback can be greatly improved by introducing micrometer-sized and nanosized SiO(2) particles into the solid electrolyte. It is helpful not only in enhancing the conductivity but also in improving the interfacial contact greatly. Consequently, the light-to-electricity conversion efficiency of 5.4% of a DSSC using LiI(HPN)(4)/15 wt % nano-SiO(2) was achieved under AM 1.5 simulated solar light illumination. Due to the low cost, easy fabrication, and relatively high conversion efficiency, the DSSC based on this new solid-state composite electrolyte is promising for practical applications.
High performance all-solid-state symmetric supercapacitor based on porous carbon made from a metal-organic framework compound
Publisher: Elsevier BV
Date: 10-2017
Flower-like Cu 5 Sn 2 S 7 /ZnS nanocomposite for high performance supercapacitor
Publisher: Elsevier BV
Date: 05-2019
Low-cost, large-scale, one-pot synthesis of C/Ni3(NO3)2(OH)4 composites for high performance supercapacitor
Publisher: Elsevier BV
Date: 09-2018
Enhanced visible‐light‐driven photocatalytic activities of LiInO2 by Mo6+‐doping strategy
Publisher: Wiley
Date: 30-03-2017
DOI: 10.1111/JACE.14799
Morphology evolution and stability of Cu2ZnSnS4 nanocrystals in sodium halides salt solution
Publisher: Elsevier BV
Date: 09-2016
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QUT: Science And Engineering Faculty; School Of Chemistry, Physics, Mechanical Engineering.
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