A5100611222- Silicon and Solar Cell Technologies
- Quantum Dots Synthesis And Properties
- Thin-Film Transistor Technologies
- Silicon Nanostructures and Photoluminescence
- Nanowire Synthesis and Applications
- ZnO doping and properties
- Semiconductor Quantum Structures and Devices
- Perovskite Materials and Applications
- Chalcogenide Semiconductor Thin Films
- Semiconductor materials and interfaces
- GaN-based semiconductor devices and materials
- Ga2O3 and related materials
- Semiconductor materials and devices
- Anodic Oxide Films and Nanostructures
- Advanced Semiconductor Detectors and Materials
- Copper-based nanomaterials and applications
- Advanced Photocatalysis Techniques
- Conducting polymers and applications
- Terahertz technology and applications
- Gas Sensing Nanomaterials and Sensors
- Acoustic Wave Resonator Technologies
- TiO2 Photocatalysis and Solar Cells
- Spectroscopy and Laser Applications
- Photonic and Optical Devices
- Electronic and Structural Properties of Oxides
Shanghai Jiao Tong University
2016-2025
Collaborative Innovation Center of Advanced Microstructures
2016-2025
Shanghai University of Electric Power
2025
Energy Research Institute
2024
Yangzhou University
2022
Beijing Solar Energy Research Institute
2012-2022
Nanjing University
2015-2021
Shanghai Institute of Microsystem and Information Technology
2018-2021
University of Leeds
2021
Institute of Applied Physics and Computational Mathematics
2021
To study the mechanism of metal- and nonmetal-ion-doped TiO2, TiO2 codoped with carbon molybdenum prepared by a hydrothermal method following calcination post-treatment is chosen as object. The samples are characterized X-ray diffractmeter, Raman spectroscopy, photoelectron Brunauer–Emmett–Teller measurement. It found that doped exists in form deposited carbonaceous species on surface substitutes for titanium lattice Mo6+ state. All have comparable large areas. photocatalytic activities...
The effect of edge-functionalization on the competitive adsorption a binary CO2-CH4 mixture in nanoporous carbons (NPCs) has been investigated for first time by combining density functional theory (DFT) and grand canonical Monte Carlo (GCMC) simulation. Our results show that more positive single-component CO2 than CH4, therefore significantly enhancing selectivity over order NH2-NPC > COOH-NPC OH-NPC H-NPC NPC at low pressure. enhanced originates essentially from effects (1) conducive...
Stable high-field anodization (1500–4000 A m−2) for the fabrication of highly ordered porous anodic alumina films has been realized in a H3PO4–H2O–C2H5OH system. By maintaining self-ordering voltage and adjusting anodizing current density, high-quality self-ordered with controllable inter-pore distance over large range are achieved. The high densities lead to high-speed film growth (4–10 µm min−1). is not solely dependent on voltage, but also influenced by density. This approach simple...
Core/shell structures often exhibit improved physical and chemical properties. Developing a relatively general, facile, low temperature synthetic approach for semiconductor core/shell with complex compositions is still particularly challenging work. Here we report general conversion route to prepare high quality ZnO-based (ZnO/ZnS, ZnO/Ag2S, ZnO/CuS) microspheres using inexpensive commercially available reagents. The key the success of our strategy lies in use reactive templates realize...
We report a simple catalyst-free vapor-phase method to fabricate Zn1-xCuxO micro-cross structures. Through series of controlled experiments by changing the location substrate and reaction time, we have realized continuous evolution product morphology from nanorods into brush-like structures at different positions, together with epitaxial growth branched central stem time extended. The mechanism has been proposed involve synthesis Cu/Zn square-like core, surface oxidation, secondary nanorod...
We report a simple chemical conversion approach to fabricate ZnO/ZnS core/shell nanorods and various metal sulfide nanotubes such as ZnS, Ag2S, CuS, PbS, Bi2S3. The formation mechanisms of the ZnS are due sulfidation Kirkendall effect, respectively, in low-temperature hydrothermal growth through reaction ZnO nanowires thioacetamide. successful into other is utilize large difference solubility between sulfides for effective transformation. In addition perfect maintenance morphology after...
Abstract Ammonia intercalated flower-like MoS 2 electrocatalyst film assembled by vertical orientated ultrathin nanosheet on graphite sheethas been successfully synthesized using one-step hydrothermal method. In this strategy, ammonia can effectively insert into the parallel plane of nanosheets, leading to expansion lattice and phase transfer from 2H 1T, generating more active unsaturated sulfur atoms. The ammoniated electrocatalysts with sites large surface area exhibited excellent HER...
Nickel oxide (NiO x ) has exhibited great potential as a hole transport layer (HTL) for fabricating efficient and stable perovskite solar cells (PSCs). However, it been greatly limited by its fabrication manipulation process. In this work, simple processing method on an ultrathin electrochemical mesoporous NiO film manipulated controllable ultraviolet/ozone (UVO) treatmentis employed; the duration of UVO treatment significantly affects photovoltaic properties PSCs. When exposure increases,...
We have carried out a detailed investigation of the effect water content on electrochemical anodization Ti in electrolytes consisting ammonium fluoride, water, and ethylene glycol. explored possible growth ordered TiO(2) nanotubes electrolyte with concentrations from 1 to 100 vol% applied voltage 10 150 V, where large diameter (approximately 600 nm) fast rate microm h(-1)) been successfully realized for self-organized nanotube arrays. The achievement benefits clear understanding effects both...
We have successfully fabricated well-ordered silicon nanowire (SiNW) arrays of smooth surface by using a low-cost and facile Ag-assisted chemical etching technique. experimentally found that the reflectance can be significantly suppressed (<1%) over wide solar spectrum (300–1000 nm) in as-grown samples. Also, based on our bundled model, we used rigorous coupled-wave analysis to simulate SiNW arrays, calculated results are good agreement with experimental data. From further simulation study...
Quantum dot sensitized solar cells (QDSSCs) are attractive photovoltaic devices due to their simplicity and low material requirements. However, efforts realize high efficiencies in QDSSCs have often been offset by complicated processes expensive or toxic materials, significantly limiting useful application. In this work, we realized for the first time, performance PbS based on TiO2 nanotube arrays (NTAs) via an situ chemical deposition method controlled a electric field. An efficiency, η, of...
Abstract Perovskite/c-Si tandem solar cells (TSCs) have become a promising candidate in recent years for achieving efficiency over 30%. Although general analysis has shown very high upper limits such TSCs, it remains largely unclear what specific optical structures could best approach these limits. Here we propose the combination of perovskite/c-Si structure with inverted nanopyramid morphology as practical way above 31% based on realistic cell parameters. By full-field simulation, that an...
Nanostructured silicon solar cells show great potential for new‐generation photovoltaics due to their ability approach ideal light‐trapping. However, the nanofeatured morphology that brings about optical benefits also introduces new recombination channels, and severe deterioration in electrical performance even outweighs gain optics most attempts. This Research News article aims review recent progress suppression of carrier nanostructures, with emphasis on optimization surface controllable...
An inverted perovskite solar cell bilaterally passivated by polystyrene exhibits an efficiency of 19.99% with a high<italic>V</italic><sub>OC</sub>of 1.149 V.
Abstract Automatic defect detection in electroluminescence (EL) images of photovoltaic (PV) modules production line remains as a challenge to replace time‐consuming and expensive human inspection improve capacity. This paper presents deep learning‐based automatic multitype defects fulfill requirements line. At first, database composed 5983 labeled EL defective PV is built, 19 types identified are introduced. Next, convolutional neural network trained on top‐14 defects, the best model...
Abstract Colloidal lead sulfide (PbS) quantum dots (QDs), which possess confinement effect and processing compatibility with perovskite, are regarded as an excellent material for optimizing perovskite solar cells (PSCs). However, the existing PSCs optimized by PbS QDs still facing challenges of poor performance charge transport layers, low utilization in near‐infrared (NIR) region, unsuitable energy level alignment, limit improvement power conversion efficiency (PCE). Herein, a synchronous...
We report on the structural and optical properties of highly ordered porous alumina membranes (PAMs) under different annealing temperatures up to 1100°C. Clear transition from amorphous γ- then α-Al2O3 has been demonstrated in PAMs through x-ray diffraction micro-Raman scattering measurements. The crystallization an temperature above 800°C results appearance two absorption structures transmission spectra ranging 1500to1700cm−1 due formation stable carboxylic impurities. have presented...