ORCID Profile
0000-0002-6469-9194
Current Organisations
University of Southern Queensland
,
University of Southern Queensland - Springfield Campus
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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)
Nanomaterials | Functional Materials | Materials Engineering | Nanomanufacturing | Materials engineering | Hybrid Vehicles and Powertrains | Energy Generation, Conversion and Storage Engineering | Mechanical Engineering | Nanomaterials | Nanoscale Characterisation | Functional materials |
ANZSRC Socio-Economic Objective (SEO)
Renewable Energy not elsewhere classified | Energy Storage (excl. Hydrogen) | Management of Greenhouse Gas Emissions from Energy Activities (excl. Electricity Generation) | Environmentally Sustainable Energy Activities not elsewhere classified | Expanding Knowledge in Technology
Related Links
Publications
Enhancing thermoelectric performance of (Cu1-xAgx)2Se via CuAgSe secondary phase and porous design
Publisher: Elsevier BV
Date: 09-2018
Exploring the underlying mechanisms behind the increased far infrared radiation properties of perovskite-type Ce/Mn co-doped ceramics
Publisher: Elsevier BV
Date: 2019
Enhancing thermoelectric performance of Bi2Te3-based nanostructures through rational structure design
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6NR00719H
Abstract: Nanostructuring has been successfully employed to enhance the thermoelectric performance of Bi2Te3 due to its obtained low thermal conductivity. In order to further reduce the thermal conductivity, we designed a hierarchical nanostructure assembled with well-aligned Bi2Te3 nanoplates using Te nanotubes as templates by a facile microwave-assisted solvothermal synthesis. From the comparisons of their thermoelectric performance and theoretical calculations with simple Bi2Te3 nanostructures, we found that Te/Bi2Te3 hierarchical nanostructures exhibit a higher figure-of-merit due to the optimized reduced Fermi level and enhanced phonon scattering, as well as the suppressed bipolar conduction. This study provides an effective approach to enhance the thermoelectric performance of Bi2Te3-based nanostructures by rationally designing the nanostructures.
Photocatalytic selective C-C bond cleavage of biomass-based monosaccharides and xylan to co-produce lactic acid and CO over an Fe-doped GaN catalyst
Publisher: Elsevier BV
Date: 11-2023
Nano-scale dislocations induced by self-vacancy engineering yielding extraordinary n-type thermoelectric Pb0.96-yInySe
Publisher: Elsevier BV
Date: 08-2018
Establishing the Golden Range of Seebeck Coefficient for Maximizing Thermoelectric Performance
Publisher: American Chemical Society (ACS)
Date: 15-01-2020
DOI: 10.1021/JACS.9B13272
Abstract: The coupling nature of thermoelectric properties determines that optimizing the Fermi level is the priority to achieve a net increase in thermoelectric performance. Conventionally, the carrier concentration is used as the reflection of the Fermi level in the band structure. However, carrier concentration strongly depends upon the material's effective mass, leading to that the optimal carrier concentration varies over a large scale for different materials. Herein, inspired by the big data survey, we develop a golden Seebeck coefficient range of 202-230 μV K
Thermoelectric performance of p-type (Bi,Sb)2Te3 incorporating amorphous Sb2S3 nanospheres
Publisher: Elsevier BV
Date: 02-2022
Enhancing the thermoelectric performance of SnSe1-xTex nanoplates through band engineering
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7TA02677C
Abstract: Owing to the convergence of multivalence bands, the thermoelectric performance of polycrystalline SnSe was significantly enhanced.
Potassium and Sulfur Dual Sites on Highly Crystalline Carbon Nitride for Photocatalytic Biorefinery and CO2 Reduction
Publisher: American Chemical Society (ACS)
Date: 24-01-2023
Scalable Growth of High Mobility Dirac Semimetal Cd3As2 Microbelts
Publisher: American Chemical Society (ACS)
Date: 27-08-2015
DOI: 10.1021/ACS.NANOLETT.5B01885
Abstract: Three-dimensional (3D) Dirac semimetals are 3D analogues of graphene, which display Dirac points with linear dispersion in k-space, stabilized by crystal symmetry. Cd3As2 has been predicted to be 3D Dirac semimetals and was subsequently demonstrated by angle-resolved photoemission spectroscopy. As unveiled by transport measurements, several exotic phases, such as Weyl semimetals, topological insulators, and topological superconductors, can be deduced by breaking time reversal or inversion symmetry. Here, we reported a facile and scalable chemical vapor deposition method to fabricate high-quality Dirac semimetal Cd3As2 microbelts they have shown ultrahigh mobility up to 1.15 × 10(5) cm(2) V(-1) s(-1) and pronounced Shubnikov-de Haas oscillations. Such extraordinary features are attributed to the suppression of electron backscattering. This research opens a new avenue for the scalable fabrication of Cd3As2 materials toward exciting electronic applications of 3D Dirac semimetals.
Enhanced thermoelectric properties of nanostructured n-type Bi2Te3 by suppressing Te vacancy through non-equilibrium fast reaction
Publisher: Elsevier BV
Date: 07-2020
Science in brief: Highlights from the applied physiology, muscle and genetics abstracts at the International Conference on Equine Exercise Physiology.
Publisher: Wiley
Date: 10-12-2016
DOI: 10.1111/EVJ.12484
Real-time observation of the thermally-induced phase transformation in GeTe and its thermal expansion properties
Publisher: Elsevier BV
Date: 02-2019
High Porosity in Nanostructured n-Type Bi2Te3 Obtaining Ultralow Lattice Thermal Conductivity
Publisher: American Chemical Society (ACS)
Date: 09-08-2019
Abstract: Porous structure possesses full potentials to develop high-performance thermoelectric materials with low lattice thermal conductivity. In this study, the
Review: applications of the functional photocatalysts BiOX (X = Cl, Br, I) for clean energy, the environment, and future photobiorefineries
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D2TA09877F
Abstract: Innovations and applications of functional material BiOX photocatalysts.
Te-Doped Cu2Se nanoplates with a high average thermoelectric figure of merit
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6TA02998A
Abstract: Te-doped Cu 2 Se nanostructures with a high average ZT value for Cu 2 Se 0.98 Te 0.02 .
Optimal array alignment to deliver high performance in flexible conducting polymer-based thermoelectric devices
Publisher: Elsevier BV
Date: 10-2022
Two-dimensional flexible thermoelectric devices: Using modeling to deliver optimal capability
Publisher: AIP Publishing
Date: 15-10-2021
DOI: 10.1063/5.0067930
Abstract: Two-dimensional flexible thermoelectric devices (2D FTEDs) are a promising candidate for powering wearable electronics by harvesting low-grade energy from human body and other ubiquitous energy sources. However, immature device designs in the parametric geometries of FTEDs cannot provide an optimized output power density because of either insufficient temperature difference or unnecessarily large internal resistance. Here, we theoretically design optimal parametric geometries of 2D FTEDs by systematically considering applied temperature difference, temperature-dependent thermoelectric properties of materials, leg thickness, and thermodynamic conditions. The obtained analytical solution determines the optimal leg length for 2D FTEDs when these parameters are given and, therefore, minimizes the internal device resistance and simultaneously maintains the high temperature difference across the TE legs to maximize the device output power density. According to this design, we use flexible Ag2Se films as thermoelectric legs to assemble a 2D FTED, which displays a maximum power output of 11.2 mW and a normalized output power density of 1.43 μW cm−2 K−1 at a temperature difference of 150 K, outnumbering other 2D FTEDs by threefolds. Our 2D FTED can power up four light-emitting diodes, which shows great potential for harvesting electricity from low-grade heat. The exotic and reliable device design concept of 2D FTEDs reported here can be extended to other thermoelectric systems to boost the practical applications of FTEDs.
A Heterostructure Coupling of Exfoliated Ni–Fe Hydroxide Nanosheet and Defective Graphene as a Bifunctional Electrocatalyst for Overall Water Splitting
Publisher: Wiley
Date: 03-03-2017
Abstract: Herein, the authors demonstrate a heterostructured NiFe LDH-NS@DG10 hybrid catalyst by coupling of exfoliated Ni-Fe layered double hydroxide (LDH) nanosheet (NS) and defective graphene (DG). The catalyst has exhibited extremely high electrocatalytic activity for oxygen evolution reaction (OER) in an alkaline solution with an overpotential of 0.21 V at a current density of 10 mA cm
Computer-aided design of high-efficiency GeTe-based thermoelectric devices
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0EE01004A
Abstract: Enhanced thermoelectric performance by band convergence and superlattice precipitates combined with geometry optimization by computer-aided design produced a segmented thermoelectric device with a record-high conversion efficiency.
Arrays of Planar Vacancies in Superior Thermoelectric Ge 1− x − y Cd x Bi y Te with Band Convergence
Publisher: Wiley
Date: 19-09-2018
Crystal symmetry induced structure and bonding manipulation boosting thermoelectric performance of GeTe
Publisher: Elsevier BV
Date: 07-2020
Exploring the Epitaxial Growth Kinetics and Anomalous Hall Effect in Magnetic Topological Insulator MnBi2Te4 Films
Publisher: American Chemical Society (ACS)
Date: 21-09-2023
Separable and recyclable meso-carbon@TiO2/carbon fiber composites for visible-light photocatalysis and photoelectrocatalysis
Publisher: Elsevier BV
Date: 09-2019
Achieving high thermoelectric performance of Ni/Cu modified Bi0.5Sb1.5Te3 composites by a facile electroless plating
Publisher: Elsevier BV
Date: 09-2018
Expedient secondary functions of flexible piezoelectrics for biomedical energy harvesting
Publisher: Elsevier BV
Date: 04-2023
Correction to “Strong Phonon–Phonon Interactions Securing Extraordinary Thermoelectric Ge1–xSbxTe with Zn-Alloying-Induced Band Alignment”
Publisher: American Chemical Society (ACS)
Date: 03-10-2019
DOI: 10.1021/JACS.9B10240
Optimizing Electronic Quality Factor toward High-Performance Ge1-x-yTaxSbyTe Thermoelectrics: The Role of Transition Metal Doping
Publisher: Wiley
Date: 16-08-2021
Abstract: Owing to high intrinsic figure‐of‐merit implemented by multi‐band valleytronics, GeTe‐based thermoelectric materials are promising for medium‐temperature applications. Transition metals are widely used as dopants for developing high‐performance GeTe thermoelectric materials. Herein, relevant work is critically reviewed to establish a correlation among transition metal doping, electronic quality factor, and figure‐of‐merit of GeTe. From first‐principle calculations, it is found that Ta, as an undiscovered dopant in GeTe, can effectively converge energy offset between light and heavy conduction band extrema to enhance effective mass at high temperature. Such manipulation is verified by the increased Seebeck coefficient of synthesized Ge 1− x − y Ta x Sb y Te s les from 160 to 180 µV K −1 at 775 K upon doping Ta, then to 220 µV K −1 with further alloying Sb. Characterization using electron microscopy also reveals the unique herringbone structure associated with multi‐scale lattice defects induced by Ta doping, which greatly hinder phonon propagation to decrease thermal conductivity. As a result, a figure‐of‐merit of ≈2.0 is attained in the Ge 0.88 Ta 0.02 Sb 0.10 Te s le, reflecting a maximum heat‐to‐electricity efficiency up to 17.7% under a temperature gradient of 400 K. The rationalized beneficial effects stemming from Ta doping is an important observation that will stimulate new exploration toward high‐performance GeTe‐based thermoelectric materials.
Crowding-out effect strategy using AgCl for realizing a super low lattice thermal conductivity of SnTe
Publisher: Elsevier BV
Date: 09-2020
Ag doping induced abnormal lattice thermal conductivity in Cu2Se
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8TC04129F
Abstract: Schematic diagram of Cu + /Ag + diffusion in the Se sublattice of Cu 2 Se, in which blocked diffusion of Ag + may subsequently block the diffusion of other Cu + and weaken the scattering of phonons.
Computation-guided design of high-performance flexible thermoelectric modules for sunlight-to-electricity conversion
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0EE01895C
Abstract: A computation-guided design of a flexible thermoelectric module achieves a high output power density of 3 μW cm −2 by sunlight-to-electricity conversion.
Native Atomic Defects Manipulation for Enhancing the Electronic Transport Properties of Epitaxial SnTe Films
Publisher: American Chemical Society (ACS)
Date: 17-11-2021
Atomic Insights into Phase Evolution in Ternary Transition‐Metal Dichalcogenides Nanostructures
Publisher: Wiley
Date: 05-2018
Abstract: Phase engineering through chemical modification can significantly alter the properties of transition-metal dichalcogenides, and allow the design of many novel electronic, photonic, and optoelectronics devices. The atomic-scale mechanism underlying such phase engineering is still intensively investigated but elusive. Here, advanced electron microscopy, combined with density functional theory calculations, is used to understand the phase evolution (hexagonal 2H→monoclinic T'→orthorhombic T
High-Performance PEDOT:PSS Flexible Thermoelectric Materials and Their Devices by Triple Post-Treatments
Publisher: American Chemical Society (ACS)
Date: 28-06-2019
Hierarchical Structuring to Break the Amorphous Limit of Lattice Thermal Conductivity in High-Performance SnTe-Based Thermoelectrics
Publisher: American Chemical Society (ACS)
Date: 15-07-2020
Bi0.5Sb1.5Te3/PEDOT:PSS-based flexible thermoelectric film and device
Publisher: Elsevier BV
Date: 10-2020
Rashba Effect Maximizes Thermoelectric Performance of GeTe Derivatives
Publisher: Elsevier BV
Date: 09-2020
Establishing the Golden Range of Seebeck Coefficient for Maximizing Thermoelectric Performance (vol 142, pg 2672, 2020)
Publisher: American Chemical Society (ACS)
Date: 02-06-2020
DOI: 10.1021/JACS.0C05548
Surface Chemistry and Band Engineering in AgSbSe2: Toward High Thermoelectric Performance
Publisher: American Chemical Society (ACS)
Date: 13-06-2023
Unravelling Effective-Medium transport and interfacial resistance in (CaTe) (GeTe)100- thermoelectrics
Publisher: Elsevier BV
Date: 2023
Rational Design of Bi2Te3 Polycrystalline Whiskers for Thermoelectric Applications
Publisher: American Chemical Society (ACS)
Date: 24-12-2014
DOI: 10.1021/AM5078528
Abstract: Bi2Te3 polycrystalline whiskers consisting of interconnected nanoplates have been synthesized through chemical transformation from In2Te3 polycrystalline whisker templates assembled by nanoparticles. The synthesized Bi2Te3 whiskers preserve the original one-dimensional morphology of the In2Te3, while the In2Te3 nanoparticles can be transformed into the Bi2Te3 thin nanoplates, accompanied by the formation of high-density interfaces between nanoplates. The hot-pressed nanostructures consolidated from Bi2Te3 polycrystalline whiskers at 400 °C demonstrate a promising figure of merit (ZT) of 0.71 at 400 K, which can be attributed to their low thermal conductivity and relatively high electrical conductivity. The small nanoparticles inherited from the polycrystalline whiskers and high-density nanoparticle interfaces in the hot-pressed nanostructures contribute to the significant reduction of thermal conductivity. This study provides a rational chemical transformation approach to design and synthesize polycrystalline microstructures for enhanced thermoelectric performances.
Achieving High-Performance Ge0.92Bi0.08Te Thermoelectrics via LaB6-Alloying-Induced Band Engineering and Multi-Scale Structure Manipulation
Publisher: Wiley
Date: 02-12-2021
Abstract: In this work, a LaB 6 ‐alloying strategy is reported to effectively boost the figure‐of‐merit (ZT) of Ge 0.92 Bi 0.08 Te‐based alloys up to ≈2.2 at 723 K, attributed to a synergy of La‐dopant induced band structuring and structural manipulation. Density‐function‐theory calculations reveal that La dopant enlarges the bandgap and converges the energy offset between the sub‐valence bands in cubic‐structured GeTe, leading to a significantly increased effective mass, which gives rise to a high Seebeck coefficient of ≈263 µV K −1 and in turn a superior power factor of ≈43 µW cm −1 K −2 at 723 K. Besides, comprehensive electron microscopy characterizations reveal that the multi‐scale phonon scattering centers, including a high density of planar defects, Boron nanoparticles in tandem with enhanced boundaries, dispersive Ge nanoprecipitates in the matrix, and massive point defects, contribute to a low lattice thermal conductivity of ≈0.67 W m −1 K −1 at 723 K. Furthermore, a high microhardness of ≈194 H v is witnessed in the as‐designed Ge 0.92 Bi 0.08 Te(LaB 6 ) 0.04 alloy, derived from the multi‐defect‐induced strengthening. This work provides a strategy for developing high‐performance and mechanical robust middle‐temperature thermoelectric materials for practical thermoelectric applications.
High-performance thermoelectric Cu2Se nanoplates through nanostructure engineering
Publisher: Elsevier BV
Date: 09-2015
Strong Phonon–Phonon Interactions Securing Extraordinary Thermoelectric Ge1–xSbxTe with Zn-Alloying-Induced Band Alignment
Publisher: American Chemical Society (ACS)
Date: 28-12-2018
DOI: 10.1021/JACS.8B12624
Abstract: The ability of substitution atoms to decrease thermal conductivity is usually ascribed to the enhanced phonon-impurity scattering by assuming the original phonon dispersion relations. In this study, we find that 10% Sb
n-Type Bi2Te3-xSex Nanoplates with Enhanced Thermoelectric Efficiency Driven by Wide-Frequency Phonon Scatterings and Synergistic Carrier Scatterings
Publisher: American Chemical Society (ACS)
Date: 11-04-2016
Abstract: Driven by the prospective applications of thermoelectric materials, massive efforts have been dedicated to enhancing the conversion efficiency. The latter is governed by the figure of merit (ZT), which is proportional to the power factor (S(2)σ) and inversely proportional to the thermal conductivity (κ). Here, we demonstrate the synthesis of high-quality ternary Bi2Te3-xSex nanoplates using a microwave-assisted surfactant-free solvothermal method. The obtained n-type Bi2Te2.7Se0.3 nanostructures exhibit a high ZT of 1.23 at 480 K measured from the corresponding sintered pellets, in which a remarkably low κ and a shift of peak S(2)σ to high temperature are observed. By detailed electron microscopy investigations, coupled with theoretical analysis on phonon transports, we propose that the achieved κ reduction is attributed to the strong wide-frequency phonon scatterings. The shifting of peak S(2)σ to high temperature is due to the weakened temperature dependent transport properties governed by the synergistic carrier scatterings and the suppressed bipolar effects by enlarging the band gap.
Superconductivity and magnetotransport of single-crystalline NbSe2nanoplates grown by chemical vapour deposition
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7NR06617A
Abstract: High-quality NbSe 2 nanoplates can be grown by a facile chemical vapour deposition method, exhibiting a two-dimensional characteristic in their superconductivities.
Advances in Versatile GeTe Thermoelectrics from Materials to Devices
Publisher: Wiley
Date: 28-11-2022
Abstract: Driven by the intensive efforts in the development of high‐performance GeTe thermoelectrics for mass‐market application in power generation and refrigeration, GeTe‐based materials display a high figure of merit of .0 and an energy conversion efficiency beyond 10%. However, a comprehensive review on GeTe, from fundamentals to devices, is still needed. In this regard, the latest progress on the state‐of‐the‐art GeTe is timely reviewed. The phase transition, intrinsic high carrier concentration, and multiple band edges of GeTe are fundamentally analyzed from the perspectives of the native atomic orbital, chemical bonding, and lattice defects. Then, the fabrication methods are summarized with a focus on large‐scale production. Afterward, the strategies for enhancing electronic transports of GeTe by energy filtering effect, resonance doping, band convergence, and Rashba band splitting, and the methods for strengthening phonon scatterings via nanoprecipitates, planar vacancies, and superlattices, are comprehensively reviewed. Besides, the device assembly and performance are highlighted. In the end, future research directions are concluded and proposed, which enlighten the development of broader thermoelectric materials.
Condensed point defects enhance thermoelectric performance of rare-earth Lu-doped GeTe
Publisher: Elsevier BV
Date: 07-2023
Sustainable utilization of municipal solid waste incineration fly ash for ceramic bricks with eco-friendly biosafety
Publisher: Elsevier BV
Date: 12-2018
Realizing zT of 2.3 in Ge 1− x − y Sb x In y Te via Reducing the Phase-Transition Temperature and Introducing Resonant Energy Doping
Publisher: Wiley
Date: 19-01-2018
Abstract: GeTe with rhombohedral-to-cubic phase transition is a promising lead-free thermoelectric candidate. Herein, theoretical studies reveal that cubic GeTe has superior thermoelectric behavior, which is linked to (1) the two valence bands to enhance the electronic transport coefficients and (2) stronger enharmonic phonon-phonon interactions to ensure a lower intrinsic thermal conductivity. Experimentally, based on Ge
Chemistry in Advancing Thermoelectric GeTe Materials
Publisher: American Chemical Society (ACS)
Date: 12-10-2022
DOI: 10.1021/ACS.ACCOUNTS.2C00467
Abstract: ConspectusThe ever-growing energy crisis and the deteriorated environment caused by carbon energy consumption motivate the exploitation of alternative green and sustainable energy supplies. Because of the unique advantages of zero-emission, no moving parts, accurate temperature control, a long steady-state operation period, and the ability to operate in extreme situations, thermoelectrics, enabling the direct conversion between heat and electricity, is a promising and sustainable option for power generation and refrigeration. However, with increasing application potentials, thermoelectrics is now facing a major challenge: developing high-performance, Pb-free, and low-toxic thermoelectric materials and devices.As one group of promising candidates, GeTe derivatives have the potential to replace the widely used thermoelectric materials containing highly toxic elements. In this Account, we summarize our recent progress in developing high-performance GeTe-based thermoelectric materials via exploring innovative strategies to enhance electron transports and d en phonon propagations. First, we fundamentally illustrate the underlying chemistry and physical reason for an intrinsically high carrier concentration in GeTe, which enormously restrains the thermoelectric performance of GeTe. From our theoretical calculations, the formation energy of Ge vacancy is the lowest among the defects in GeTe, energetically favoring Ge vacancies in the lattice and leading to intrinsically high carrier concentrations. Accordingly, aliovalent doping/alloying is proposed to increase the formation energy of Ge vacancies and decrease the carrier concentration to the optimal level. We then outline the newly developed method to refine the band structures of GeTe with tuned electronic transport. On the basis of the molecular orbital theory, the energy offset between two valence band edges at the L and Σ points in GeTe should be ascribed to the slightly different Ge_4s orbital characters at these two points, which guides the screening of dopants for band convergence. Besides, the Rashba spin splitting is explored to increase the band degeneracy of GeTe. Afterward, we analyze the d ened phonon propagation in GeTe to minimize its lattice thermal conductivity. Alloying with the heavy Sb atoms can shift the optical phonon modes toward low frequency and reinforce the interaction of optical and acoustic phonon modes so that the inherent phonon scattering is enhanced. In addition, planar vacancies and superlattice precipitates can significantly strengthen phonon scattering to result in ultralow lattice thermal conductivity. After that, we overview the finite elemental analysis simulations to optimize the device geometry for maximizing the device performance and introduce the as-developed prototype GeTe-based thermoelectric device. In the end, we point out future directions in the development of GeTe for device applications. The strategies summarized in this Account can serve as references for developing wide materials with enhanced thermoelectric performance.
Synthesis of thermoelectric materials
Publisher: Elsevier
Date: 2021
Boosting the thermoelectric performance of p-type heavily Cu-doped polycrystalline SnSe via inducing intensive crystal imperfections and defect phonon scattering
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8SC02397B
Abstract: In this study, we, for the first time, report a high Cu solubility of 11.8% in single crystal SnSe microbelts synthesized via a facile solvothermal route.
Self-assembled 3D flower-like hierarchical Ti-doped Cu3SbSe4 microspheres with ultralow thermal conductivity and high zT
Publisher: Elsevier BV
Date: 07-2018
Co-doped Sb2Te3paramagnetic nanoplates
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C5TC03767K
Abstract: Paramagnetic Co-doped Sb 2 Te 3 nanoplates are fabricated using a facile and green solvothermal method.
The effect of rare earth element doping on thermoelectric properties of GeTe
Publisher: Elsevier BV
Date: 10-2022
Realizing Bi-doped α-Cu2Se as a promising near-room-temperature thermoelectric material
Publisher: Elsevier BV
Date: 09-2019
n-type Bi-doped PbTe Nanocubes with Enhanced Thermoelectric Performance
Publisher: Elsevier BV
Date: 2017
Achieving high Figure of Merit in p-type polycrystalline Sn0.98Se via self-doping and anisotropy-strengthening
Publisher: Elsevier BV
Date: 2018
BixSb2-xTe3 nanoplates with enhanced thermoelectric performance due to sufficiently decoupled electronic transport properties and strong wide-frequency phonon scatterings
Publisher: Elsevier BV
Date: 02-2016
Achieving zT > 2 in p-Type AgSbTe2-xSex Alloys via Exploring the Extra Light Valence Band and Introducing Dense Stacking Faults
Publisher: Wiley
Date: 18-12-2018
Abstract: Through simultaneously enhancing the power factor by engineering the extra light band and enhancing phonon scatterings by introducing a high density of stacking faults, a record figure‐of‐merit over 2.0 is achieved in p‐type AgSbTe 2− x Se x alloys. Density functional theory calculations confirm the presence of the light valence band with large degeneracy in AgSbTe 2 , and that alloying with Se decreases the energy offset between the light valence band and the valence band maximum. Therefore, a significantly enhanced power factor is realized in p‐type AgSbTe 2− x Se x alloys. In addition, transmission electron microscopy studies indicate the appearance of stacking faults and grain boundaries, which together with grain boundaries and point defects significantly strengthen phonon scatterings, leading to an ultralow thermal conductivity. The synergetic strategy of simultaneously enhancing power factor and strengthening phonon scattering developed in this study opens up a robust pathway to tailor thermoelectric performance.
Impacts of Cu deficiency on the thermoelectric properties of Cu2−XSe nanoplates
Publisher: Elsevier BV
Date: 07-2016
Dual Ag/ZnO‐Decorated Micro‐/Nanoporous Sulfonated Polyetheretherketone with Superior Antibacterial Capability and Biocompatibility via Layer‐by‐Layer Self‐Assembly Strategy
Publisher: Wiley
Date: 21-05-2018
Abstract: Polyetheretherketone is attractive for dental and orthopedic applications due to its mechanical attributes close to that of human bone however, the lack of antibacterial capability and bioactivity of polyetheretherketone has substantially impeded its clinical applications. Here, a dual therapy implant coating is developed on the 3D micro-/nanoporous sulfonated polyetheretherketone via layer-by-layer self-assembly of Ag ions and Zn ions. Material characterization studies have indicated that nanoparticles consisting of elemental Ag and ZnO are uniformly incorporated on the porous sulfonated polyetheretherketone surface. The antibacterial assays demonstrate that Ag-decorated sulfonated polyetheretherketone and Ag/ZnO-codecorated sulfonated polyetheretherketone effectively inhibit the reproduction of Gram-negative and Gram-positive bacteria. Owing to the coordination of micro-/nanoscale topological cues and Zn induction, the Ag/ZnO-codecorated sulfonated polyetheretherketone substrates are found to enhance biocompatibility (cell viability, spreading, and proliferation), and hasten osteodifferentiation and -maturation (alkaline phosphate activity (ALP) production, and osteogenesis-related genetic expression), compared with the Ag-decorated sulfonated polyetheretherketone and the ZnO-decorated sulfonated polyetheretherketone counterparts. The dual therapy Ag/ZnO-codecorated sulfonated polyetheretherketone has an appealing bacteriostatic performance and osteogenic differentiation potential, showing great potential for dental and orthopedic implants.
Enhanced Thermoelectric Performance of Nanostructured Bi2Te3 through Significant Phonon Scattering
Publisher: American Chemical Society (ACS)
Date: 19-10-2015
Abstract: N-type Bi2Te3 nanostructures were synthesized using a solvothermal method and in turn sintered using sparking plasma sintering. The sintered n-type Bi2Te3 pellets reserved nanosized grains and showed an ultralow lattice thermal conductivity (∼0.2 W m(-1) K(-1)), which benefits from high-density small-angle grain boundaries accommodated by dislocations. Such a high phonon scattering leads an enhanced ZT of 0.88 at 400 K. This study provides an efficient method to enhance thermoelectric performance of thermoelectric nanomaterials through nanostructure engineering, making the as-prepared n-type nanostructured Bi2Te3 as a promising candidate for room-temperature thermoelectric power generation and Peltier cooling.
Thermoelectric GeTe with Diverse Degrees of Freedom Having Secured Superhigh Performance
Publisher: Wiley
Date: 13-02-2019
Abstract: Driven by the ability to harvest waste heat into reusable electricity and the exclusive role of serving as the power generator for deep spacecraft, intensive endeavors are dedicated to enhancing the thermoelectric performance of ecofriendly materials. Herein, the most recent progress in superhigh-performance GeTe-based thermoelectric materials is reviewed with a focus on the crystal structures, phase transitions, resonant bondings, multiple valance bands, and phonon dispersions. These features ersify the degrees of freedom to tune the transport properties of electrons and phonons for GeTe. On the basis of the optimized carrier concentration, strategies of alignment of multiple valence bands and density-of-state resonant distortion are employed to further enhance the thermoelectric performance of GeTe-based materials. To decrease the thermal conductivity, methods of strengthening intrinsic phonon-phonon interactions and introducing various lattice imperfections as scattering centers are highlighted. An overview of thermoelectric devices assembled from GeTe-based thermoelectric materials is then presented. In conclusion, possible future directions for developing GeTe in thermoelectric applications are proposed. The achieved high thermoelectric performance in GeTe-based thermoelectric materials with rationally established strategies can act as a reference for broader materials to tailor their thermoelectric performance.
High Thermoelectric Performance in Sintered Octahedron-Shaped Sn(CdIn)xTe1+2x Microcrystals
Publisher: American Chemical Society (ACS)
Date: 18-10-2018
Abstract: In this study, we fabricate In/Cd codoped octahedron-shape Sn(CdIn)
Processing BIM and GIS models in practice: experiences and recommendations from a GeoBIM project in the Netherlands
Publisher: MDPI AG
Date: 29-06-2018
DOI: 10.20944/PREPRINTS201806.0488.V1
Abstract: It is widely acknowledged that the integration of BIM and GIS data is a crucial step forward for future 3D city modelling, but most of the research conducted so far has covered only the semantic aspects of GIS-BIM integration. We present here the results of the GeoBIM project, in which we tackled three integration problems focussing instead on aspects involving geometry processing: (i) the automated processing of complex architectural IFC models, (ii) the integration of existing GIS subsoil data in BIM, and (iii) the georeferencing of BIM models for their use in GIS software. All the problems have been studied using real world models and existing datasets made and used by practitioners in the Netherlands. For each problem, we expose in detail the issues we faced, our proposed solutions, and our recommendations for a more successful integration.
Nanoscale pores plus precipitates rendering high-performance thermoelectric SnTe1-xSex with refined band structures
Publisher: Elsevier BV
Date: 06-2019
Fundamental and progress of Bi2Te3-based thermoelectric materials
Publisher: IOP Publishing
Date: 04-2018
High-efficiency thermocells driven by thermo-electrochemical processes
Publisher: Elsevier BV
Date: 07-2021
Enhanced Thermoelectric Performance of Ultrathin Bi2Se3 Nanosheets through Thickness Control
Publisher: Wiley
Date: 20-04-2015
Versatile Vanadium Doping Induces High Thermoelectric Performance in GeTe via Band Alignment and Structural Modulation
Publisher: Wiley
Date: 20-04-2021
Limit ofz T
Publisher: American Physical Society (APS)
Date: 14-10-2016
High Thermoelectric Performance in p‐type Polycrystalline Cd‐doped SnSe Achieved by a Combination of Cation Vacancies and Localized Lattice Engineering
Publisher: Wiley
Date: 29-01-2019
Related Organisations
University Of Southern Queensland - Springfield Campus
Location: Australia
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Cost-effective Metal Selenide Materials For Solid-state Devices
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