ORCID Profile
0000-0002-5068-7838
Current Organisations
Lingnan Normal University
,
Nanchang Hangkong University
,
Harbin Institute of Technology
Does something not look right? The information on this page has been harvested from data sources that may not be up to date. We continue to work with information providers to improve coverage and quality. To report an issue, use the Feedback Form.
Related Links
Publications
Energy gradient architectured praseodymium chalcogenide quantum dot solar cells: Towards unidirectionally funneling energy transfer
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5TA06447C
Abstract: By sequentially layering quantum dots, rainbow quadruple-stack junctions with energy gradient architecture are constructed. Efficient charge energy transfer occurs in the multilayer, thus leading to a significant enhancement in photovoltaic performances of quantum dot solar cells.
Reducing the excess energy offset in organic/inorganic hybrid solar cells: Toward faster electron transfer
Publisher: Elsevier BV
Date: 2015
Enhanced charge transport and photovoltaic performance induced by incorporating rare-earth phosphor into organic–inorganic hybrid solar cells
Publisher: Royal Society of Chemistry (RSC)
Date: 02-10-2014
DOI: 10.1039/C4CP03232B
Abstract: In this work, dysprosium ion decorated yttrium oxide (Dy(3+):Y2O3) nanocrystal phosphors were incorporated into TiO2 acceptor thin film in a bid to enhance the light harvest, charge separation and transfer in the hybrid solar cells. The results show that the energy level offset between the donor (P3HT) and the acceptor (Dy(3+):Y2O3-TiO2) has been narrowed down, thus leading to the enhanced electron and hole transports, and also photovoltaic performances as compared to pure TiO2 without incorporating Dy(3+):Y2O3. By applying femtosecond transient optical spectroscopy, after the incorporation of dopant Dy(3+):Y2O3 into TiO2 at 6 wt%, both the hot electron and hole transfer lifetimes have been shortened, that is, from 30.2 ps and 6.94 ns to 25.1 ps and 1.26 ns, respectively, and an enhanced efficiency approaching 3% was achieved as compared to 2.0% without doping, indicating that the energetic charges are captured more efficiently benefitting a higher power conversion efficiency. Moreover, these results reveal that both the conduction band (CB) and valence band (VB) edges of the acceptor were elevated by 0.57 and 0.32 eV, respectively, after incorporating 6 wt% Dy(3+):Y2O3. This work demonstrates that distinct energy level alignment engineered by Dy(3+):Y2O3 phosphor has an important role in pursuing efficient future solar cells and underscores the promising potential of rare-earth phosphor in solar applications.
Bright alloy type-II quantum dots and their application to light-emitting diodes
Publisher: Elsevier BV
Date: 2018
DOI: 10.1016/J.JCIS.2017.09.080
Abstract: Type-II quantum dots (QDs) are emerging as a promising candidate for full color light sources owing to their advantages in achieving full color light by tuning the heterostructures. Despite the recent developments in type-II QDs, the choices of proper materials are limited for the composition of a high-quality QD and it still remains a big challenge to enhance the photoluminescence (PL) quantum yields (QYs) of type-II QDs for light-emitting diode (LED) applications. Here, we develop Cd
Tailoring solar energy spectrum for efficient organic/inorganic hybrid solar cells by up-conversion luminescence nanophosphors
Publisher: Elsevier BV
Date: 11-2015
Small bandgap naphthalene diimide copolymers for efficient inorganic-organic hybrid solar cells
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C4RA12188K
Abstract: The energy level control of efficient inorganic–organic hybrid solar cells induced by using a copolymer was demonstrated.
In situ synthesis of binary cobalt-ruthenium nanofiber alloy counter electrode for electrolyte-free cadium sulfide quantum dot solar cells
Publisher: Elsevier BV
Date: 06-2015
Reduced energy offset via substitutional doping for efficient organic/inorganic hybrid solar cells
Publisher: The Optical Society
Date: 09-04-2015
DOI: 10.1364/OE.23.00A444
Ruthenium cation substitutional doping for efficient charge carrier transfer in organic/inorganic hybrid solar cells
Publisher: Elsevier BV
Date: 2015
Balancing the Electron and Hole Transfer for Efficient Quantum Dot Light-Emitting Diodes by Employing a Versatile Organic Electron-Blocking Layer
Publisher: American Chemical Society (ACS)
Date: 18-04-2018
Abstract: The electron-blocking layer (EBL) is important to balance the charge carrier transfer and achieve highly efficient quantum dot light-emitting diodes (QLEDs). Here, we report the utilization of a soluble tert-butyldimethylsilyl chloride-modified poly( p-phenylene benzobisoxazole) (TBS-PBO) as an EBL for simultaneous good charge carrier transfer balance while maintaining a high current density. We show that the versatile TBS-PBO blocks excess electron injection into the quantum dots (QDs), thus leading to better charge carrier transfer balance. It also restricts the undesired QD-to-EBL electron-transfer process, which preserves the superior emission capabilities of the emitter. As a consequence, the TBS-PBO device delivers an external quantum efficiency (EQE) maximum of 16.7% along with a remarkable current density as high as 139 mA/cm
Efficiency enhancement via tailoring energy level alignment induced by vanadium ion doping in organic/inorganic hybrid solar cells
Publisher: Royal Society of Chemistry (RSC)
Date: 12-09-2014
DOI: 10.1039/C4RA08671F
Core–Shell Nanophosphor Architecture: Toward Efficient Energy Transport in Inorganic/Organic Hybrid Solar Cells
Publisher: American Chemical Society (ACS)
Date: 08-07-2014
DOI: 10.1021/AM5027709
Abstract: In this work, a core-shell nanostructure of samarium phosphates encapsulated into a Eu(3+)-doped silica shell has been successfully fabricated, which has been confirmed by X-ray diffraction, transmission electron microscopy (TEM), and high-resolution TEM. Moreover, we report the energy transfer process from the Sm(3+) to emitters Eu(3+) that widens the light absorption range of the hybrid solar cells (HSCs) and the strong enhancement of the electron-transport of TiO2 oly(3-hexylthiophene) (P3HT) bulk heterojunction (BHJ) HSCs by introducing the unique core-shell nanoarchitecture. Furthermore, by applying femtosecond transient absorption spectroscopy, we successfully obtain the electron transport lifetimes of BHJ systems with or without incorporating the core-shell nanophosphors (NPs). Concrete evidence has been provided that the doping of core-shell NPs improves the efficiency of electron transfers from donor to acceptor, but the hole transport almost remains unchanged. In particular, the hot electron transfer lifetime was shortened from 30.2 to 16.7 ps, i.e., more than 44% faster than pure TiO2 acceptor. Consequently, a notable power conversion efficiency of 3.30% for SmPO4@Eu(3+):SiO2 blended TiO2/P3HT HSCs is achieved at 5 wt % as compared to 1.98% of pure TiO2/P3HT HSCs. This work indicates that the core-shell NPs can efficiently broaden the absorption region, facilitate electron-transport of BHJ, and enhance photovoltaic performance of inorganic/organic HSCs.
Nd2 (S, Se, Te)3 Colloidal Quantum Dots: Synthesis, Energy Level Alignment, Charge Transfer Dynamics, and Their Applications to Solar Cells
Publisher: Wiley
Date: 30-11-2016
The origin of efficiency enhancement of inorganic/organic Hybrid solar Cells by robust samarium phosphate nanophosphors
Publisher: Elsevier BV
Date: 11-2014
Energy level control: toward an efficient hot electron transport
Publisher: Springer Science and Business Media LLC
Date: 07-08-2014
DOI: 10.1038/SREP05983
Exciton Generation/Dissociation/Charge-Transfer Enhancement in Inorganic/Organic Hybrid Solar Cells by Robust Single Nanocrystalline LnPxOy (Ln = Eu, Y) Doping
Publisher: American Chemical Society (ACS)
Date: 29-05-2014
DOI: 10.1021/AM501597K
Abstract: Low-temperature solution-processed photovoltaics suffer from low efficiencies because of poor exciton or electron-hole transfer. Inorganic/organic hybrid solar cell, although still in its infancy, has attracted great interest thus far. One of the promising ways to enhance exciton dissociation or electron-hole transport is the doping of lanthanide phosphate ions. However, the underlying photophysical mechanism remains poorly understood. Herein, by applying femtosecond transient absorption spectroscopy, we successfully distinguished hot electron, less energetic electron, hole transport from electron-hole recombination. Concrete evidence has been provided that lanthanide phosphate doping improves the efficiency of both hot electron and "less energetic" electron transfers from donor to acceptor, but the hole transport almost remains unchanged. In particular, the hot electron transfer lifetime was shortened from 30.2 to 12.7 ps, that is, more than 60% faster than pure TiO2 acceptor. Such improvement was ascribed to the facts that the conduction band (CB) edge energy level of TiO2 has been elevated by 0.2 eV, while the valence band level almost remains unchanged, thus not only narrowing the energy offset between CB levels of TiO2 and P3HT, but also meanwhile enlarging the band gap of TiO2 itself that permits one to inhibit electron-hole recombination within TiO2. Consequently, lanthanide phosphate doped TiO2/P3HT bulk-heterojunction solar cell has been demonstrated to be a promising hybrid solar cell, and a notable power conversion efficiency of 2.91% is therefore attained. This work indicates that lanthanide compound ions can efficiently facilitate exciton generation, dissociation, and charge transport, thus enhancing photovoltaic performance.
Efficient electron/hole transport in inorganic/organic hybrid solar cells by lithium ion and molybdenum trioxide codoping
Publisher: Elsevier BV
Date: 12-2014
Related Organisations
Related Funding Activities
No related grants have been discovered for Xiao Jin.