A5054097288- Quantum Dots Synthesis And Properties
- Perovskite Materials and Applications
- Chalcogenide Semiconductor Thin Films
- Advancements in Battery Materials
- Luminescence Properties of Advanced Materials
- Nanowire Synthesis and Applications
- Advanced Battery Materials and Technologies
- Catalytic Processes in Materials Science
- 2D Materials and Applications
- Supercapacitor Materials and Fabrication
- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- Catalysis and Oxidation Reactions
- Advanced Photocatalysis Techniques
- MXene and MAX Phase Materials
- ZnO doping and properties
- Conducting polymers and applications
- biodegradable polymer synthesis and properties
- Nanocluster Synthesis and Applications
- Solid-state spectroscopy and crystallography
- Graphene research and applications
- High-Energy Particle Collisions Research
- Glass properties and applications
- Microplastics and Plastic Pollution
- Advanced Battery Technologies Research
Chinese Academy of Medical Sciences & Peking Union Medical College
2021-2025
Hefei University of Technology
2016-2025
Qingdao University
2012-2025
Peking University
2015-2025
Tsinghua University
2008-2025
Peking Union Medical College Hospital
2021-2025
Wuhan University of Technology
2012-2025
Dali University
2024-2025
Beijing Institute of Fashion Technology
2025
Tianjin Medical University
2025
The photoconductive characteristics of CdS single nanoribbons were investigated. device characteristics, including spectral response, light intensity and time studied systematically. It is found that nanoribbon has the response speed substantively faster than those ever reported for conventional film bulk materials size a significant influence on with smaller showing higher speed. high photosensitivity photoresponse are attributable to large surface-to-volume ratio single-crystal quality...
Polyhydroxyalkanoates (PHAs) are microbial storage polymers that attract interest as bioplastics. PHAs can be produced with open mixed cultures if a suitable enrichment step based on the ecological role of PHA is used. An acetate-fed sequencing batch reactor operated 1 day biomass residence time and feast−famine cycles 12 h was used to enrich culture producers. In subsequent fed-batch experiments under growth limiting conditions, enriched up cellular content 89 wt % within 7.6 (average rate...
Despite the great potential of all-inorganic CsPbX3 (X = Br or I) quantum dots (QDs) for light-emitting diodes (QLEDs), their emission properties have been impeded by long insulating ligands on QD surface. To address problem, an efficient surface ligand engineering method has executed using a short conjugation molecular phenethylamine (PEA) as to synthesize QDs and then treating films with phenethylammonium bromide (PEABr) iodide (PEAI). The results indicate that is successfully adsorbed...
Tetragonal CsPb2Br5 nanosheets were obtained by an oriented attachment of orthorhombic CsPbBr3 nanocubes, involving a lateral shape evolution from octagonal to square. Meanwhile, the experimental results, together with DFT simulation indicated that tetragonal is indirect bandgap semiconductor PL-inactive 2.979 eV.
Ultrathin Bi2S3 nanosheets with thicknesses down to 2.2 nm are fabricated. The resultant ultrathin Bi2S3-based photoconductor shows high sensitivity visible–near infrared light from 405 780 a external photoresponsivity up 4.4 A W−1, detectivity of ≈1011 Jones, relatively fast response time ≈10 μs, and flexibility durability. As service our authors readers, this journal provides supporting information supplied by the authors. Such materials peer reviewed may be re-organized for online...
c2D transition metal dichalcogenides (TMDCs)-based heterostructures have been demonstrated to achieve superior light absorption and photovoltaic effects theoretically experimentally, making them extremely attractive for realizing optoelectronic devices. In this work, a vertical multilayered n-MoS2/n-silicon homotype heterojunction is fabricated, which takes advantage of MoS2 grown in situ directly on plane silicon. Electrical characterization reveals that the resultant device exhibits high...
MXenes have been demonstrated as a potential candidate in the field of photovoltaics and energy storage owing to their high transmittance, metallic conductivity tunable work function.
Halogen vacancies are of great concern in blue-emitting perovskite quantum-dot light-emitting diodes because they affect their efficiency and spectral shift. Here, an enriched-bromine surface state is realized using a facile strategy that employs PbBr2 stock solution for anion exchange based on Cd-doped quantum dots. It found the doped Cd ions expected to reduce formation energy halogen filled by external bromine ions, excess free enriched anchoring with as sites, accompanied shedding...
Abstract Metal‐halide perovskite solar cells (PSCs) exhibit outstanding power conversion efficiencies (PCEs) when fabricated as mm‐sized devices, but creation of high‐performing large‐area modules that are stable on a sufficiently long timescale still presents significant challenge. Herein, the quality film is improved by using ionic liquid additives via forming new Pb‐N bonding between and Pb 2+ . This bond can be modulated critical screening anion structure liquid. The selected effectively...
Abstract Photodetectors are fabricated from individual single‐crystal CdSe nanoribbons, and the photoresponse properties of devices studied systematically. The photodetector shows a high sensitivity towards excitation wavelength with sharp cut‐off at 710 nm, corresponding to bandgap CdSe. device exhibits photo‐to‐dark current ratio five orders magnitude 650 can function excellent stability, reproducibility, response speed (< 1 ms) in wide range switching frequency (up 300 Hz)....
A novel polytype modulated 1D structure has been grown in ZnS nanowires via intermittent laser ablation–catalytic growth. The show a strong blue‐shifted bandgap emission centered at 338.2 nm due to quantum size effects. Figure shows dark‐field image of one the (top) and corresponding electron diffraction patterns (bottom).
Abstract Inorganic perovskites with special semiconducting properties and structures have attracted great attention are regarded as next generation candidates for optoelectronic devices. Herein, using a physical vapor deposition process controlled excess of PbBr 2 , dual‐phase all‐inorganic perovskite composite CsPbBr 3 –CsPb Br 5 thin films prepared light‐harvesting layers incorporated in photodetector (PD). The PD has high responsivity detectivity 0.375 A W −1 10 11 Jones, respectively,...
Advanced anode materials for high power and energy lithium-ion batteries have attracted great interest due to the increasing demand conversion storage devices. Metal oxides (e.g., Fe3O4) usually possess theoretical capacities, but poor electrochemical performances owing their severe volume change electronic conductivity during cycles. In this work, we develop a self-assembly approach synthesis of sandwich-structured graphene-Fe3O4@carbon composite, in which Fe3O4 nanoparticles with carbon...
In this study we investigated the use of lactate and a lactate/acetate mixture for enrichment poly-3-hydroxybutyrate (PHB) producing mixed cultures. The cultures were enriched in sequencing batch reactors (SBR) that established feast-famine regime. SBRs operated under conditions previously shown to enable superior PHB strain on acetate (i.e., 12 h cycle length, 1 day SRT 30°C). Two new eventually from activated sludge. culture was dominated by novel gammaproteobacterium. This can accumulate...
Cesium lead halide quantum dots (QDs) have tunable photoluminescence that is capable of covering the entire visible spectrum and high yields, which make them a new fluorescent materials for various applications. Here, synthesis CsPbX 3 (X = Cl, Br, I, or mixed Cl/Br Br/I) QDs by direct ion reactions in ether solvents reported, first time synergetic effects solvent polarity reaction temperature on nucleation growth are demonstrated. The use with low enables controlled QDs, facilitates...
Three-dimensionally ordered macroporous Co3O4 (3DOM Co3O4) and its supported gold (xAu/3DOM Co3O4, x = 1.1–8.4 wt%) nanocatalysts were prepared using the polymethyl methacrylate-templating bubble-assisted polyvinyl alcohol-protected reduction methods, respectively. The 3DOM xAu/3DOM samples exhibited a surface area of 22–27 m2 g−1. Au nanoparticles with size 2.4–3.7 nm uniformly deposited on macropore walls Co3O4. There good correlations oxygen adspecies concentration low-temperature...
Abstract The development of solution‐processed inorganic metal halide perovskite light‐emitting diodes (PeLEDs) is currently hindered by low emission efficiency due to morphological defects and severe non‐radiative recombination in all‐inorganic emitters. Herein, bright PeLEDs are demonstrated synergetic morphology control over cesium lead bromide (CsPbBr 3 ) films with the combination two additives. phenethylammonium additive enables formation mixed‐dimensional CsPbBr perovskites featuring...