A5042108704- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Copper-based nanomaterials and applications
- Advanced Photocatalysis Techniques
- Nanoparticle-Based Drug Delivery
- Covalent Organic Framework Applications
- Advanced Drug Delivery Systems
- MXene and MAX Phase Materials
- Electrochemical sensors and biosensors
- Vaccine Coverage and Hesitancy
- Advanced biosensing and bioanalysis techniques
- Dendrimers and Hyperbranched Polymers
- Polymer Surface Interaction Studies
- Metal-Organic Frameworks: Synthesis and Applications
- Advanced Nanomaterials in Catalysis
- Language, Discourse, Communication Strategies
- TiO2 Photocatalysis and Solar Cells
- Membrane Separation and Gas Transport
- Adolescent Sexual and Reproductive Health
- Human Mobility and Location-Based Analysis
- Patient-Provider Communication in Healthcare
- Advanced Materials and Mechanics
- Hydrogels: synthesis, properties, applications
- Diverse Aspects of Tourism Research
- Hate Speech and Cyberbullying Detection
Taiyuan University of Technology
2024
Fudan University
2019-2023
Collaborative Innovation Center of Chemistry for Energy Materials
2022-2023
University College London
2023
Communication University of China
2022
Zhongnan University of Economics and Law
2021
Shandong Provincial Hospital
2018
ARC Centre of Excellence in Advanced Molecular Imaging
2015-2017
UNSW Sydney
2015-2017
Technical University of Denmark
2016
A kesterite Cu2ZnSnS4 thin film solar cell with efficiency of over 9% is obtained by utilizing Zn1–xCdxS as a replacement to traditional CdS buffer layer. can optimize the conduction band offset between absorber and buffer, forming minor positive alignment, thereby alleviating recombination significantly improving open circuit voltage fill factor efficiently.
Kesterite Cu2ZnSnS4 (CZTS) thin-film solar cells have drawn worldwide attention because of outstanding performance and earth-abundant constituents. However, problems such as coexistence complex secondary phases, the band tailing issue, short minority lifetime, bulk defects, undesirable alignment at p–n interfaces need to be addressed for further efficiency improvement. In this regard, Cd alloying shows promise dealing with some these problems. work, a beyond 11% efficient Cd-alloyed CZTS...
Highly efficient, ultrathin (~400 nm) pure sulfide kesterite Cu2ZnSnS4 (CZTS) solar cells have been realized by interface reaction route controlling and self-organized nano-pattern at the back contact. The Al2O3 intermediate layer introduced Mo/CZTS can effectively inhibit detrimental interfacial between CZTS Mo in initial stage of sulfurization, then turns into a nanopattern yielding nanoscale opening for electrical With this modification, traditional issues phase segregation (secondary...
Sulfurization with various atmosphere and postheat treatments has been reported for earth abundant kesterite Cu 2 ZnSnS 4 (CZTS) preparation as cost‐effective material next‐generation solar cells. A full understanding of the nanoscale microstructure chemistry CZTS/CdS interface obtained from these different fabrication routes is currently lacking, yet critical to developing optimal processing high‐performance Here, first detailed investigation interfacial CdS/Cu heterojunctions presented....
Back contact modification plays an important role in improving energy conversion efficiency of Cu2ZnSnS4 (CZTS) thin film solar cells. In this paper, ultrathin carbon layer is introduced on molybdenum (Mo)-coated soda lime glass (SLG) prior to the deposition CZTS precursor improve back and therefore enhance cell efficiency. By introducing layer, short circuit current (Jsc) device increase for both nonvacuum (sol–gel) vacuum (sputtering) methods. Specifically, sol–gel based process, Jsc...
Schematic representation of the CZTS absorber and device in this study.
A novel strategy was developed to prepare nanospheres and vesicles as drug carriers. The drug-loaded pectin were fabricated in aqueous media containing Ca2+ CO32− ions under very mild conditions, which did not involve any surfactant. Through adjusting the preparation nanosized delivery systems with diverse morphologies, that is, vesicles, could be obtained. This technique offer good control over morphology size of vesicles. morphologies aggregates observed by environmental scanning electron...
We report a reproducible enhancement of the open circuit voltage in Cu2ZnSnS4 solar cells by introduction very thin CeO2 interlayer between absorber and conventional CdS buffer. CeO2, non-toxic earth-abundant compound, has nearly optimal band alignment with two materials are lattice-matched within 0.4%. This makes it possible to achieve an epitaxial interface when growing chemical bath deposition at temperatures as low 50 °C. The improvement is then attributed decrease recombination rate...
Pure-sulfide Cu2ZnSnS4 thin film solar cells were fabricated employing a facile and low-cost preparation procedure by depositing wurtzite CZTS nanocrystals, followed high temperature sulfurization. The exploration of previously reported devices with >4.8% efficiency has demonstrated the potential application nanocrystals in optoelectronic devices. Moreover, TEM-EDS characterization revealed presence compositional fluctuations within fine-grained sublayer that may limit performance final To...
Rather than receive the effective 2vHPV vaccines that are readily available in China, Chinese women usually wait to 4v and 9vHPV vaccines, which difficult acquire. This means miss opportunity for optimal protection from cervical cancer. As social media platforms main channel by learn about HPV this study aimed explore how described on media, particular they discuss or distinguish 2 v, 4 v vaccines. The Octopus Web crawler tool was used capture hot Weibo posts 2013-2021, 1,164 valid data were...
By using sulfur atmosphere, Na compound, and suitable precursor composition, pure-sulfide Cu<sub>2</sub>ZnSnS<sub>4</sub> solar cells with 4.83% efficiency are fabricated by forming large grains from metastable wurtzite nanocrystals.
The light-bias-dependent behavior of external quantum efficiency (EQE) in kesterite Cu2ZnSnS4 solar cells utilizing different buffers has been reported. Under red light bias, the blue EQE can be enhanced significantly, exceeding unity magnitude due to photoconductivity increasing depletion region width and thereby collection efficiency. increases only devices with a hybrid buffer. It stays constant CdS buffer saturated even decreases an In2S3 optical injection photons through more...
SiO2 nanotubes (NTs), with uniform diameter (∼25 nm) and tailored shell thickness (1–5 nm), featuring chemically asymmetric surfaces (a silane-functionalized exterior surface a negatively charged (−Si–O–) interior surface) are prepared by facile, template-free approach. Owing to their properties, positively cargoes can be selectively loaded high content into the NTs via electrostatic interaction. Mediated polyamidoamine dendrimers preassembled in NTs, different noble metal nanoparticles...