A5101578572- Algebraic Geometry and Number Theory
- Advanced Algebra and Geometry
- Perovskite Materials and Applications
- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Advanced Photocatalysis Techniques
- Solid-state spectroscopy and crystallography
- Conducting polymers and applications
- Copper-based nanomaterials and applications
- Analytic Number Theory Research
- Polynomial and algebraic computation
- Homotopy and Cohomology in Algebraic Topology
- Advanced Numerical Analysis Techniques
- Electrocatalysts for Energy Conversion
- Iron oxide chemistry and applications
- Gas Sensing Nanomaterials and Sensors
- Anodic Oxide Films and Nanostructures
- Catalytic Processes in Materials Science
- Advanced Topics in Algebra
- Nanowire Synthesis and Applications
- Historical Studies and Socio-cultural Analysis
- Finite Group Theory Research
- Commutative Algebra and Its Applications
- Nanocluster Synthesis and Applications
- Metal Extraction and Bioleaching
Lanzhou University
2019-2025
Peking University
2004-2025
Shenzhen Pingle Orthopedic Hospital
2025
Harbin Institute of Technology
2024
Shanghai University
2024
Shenyang University of Technology
2024
Kangmei Pharmaceutical (China)
2024
Zhengzhou University of Light Industry
2024
Dalian University of Technology
2016-2023
Nanjing University of Chinese Medicine
2023
The direct conversion of solar energy into hydrogen represents an attractive but challenging alternative for photo-voltaic cells. Several metal oxide semiconductors are able to split water and oxygen upon illumination, the efficiencies still (too) low. operating principles photo-electrochemical devices splitting, their main bottlenecks, various device concepts will be reviewed. Materials properties play a key role, advantages pitfalls use interfacial layers dopants discussed. Special...
BiVO4 has received much recent interest as a promising photocatalyst for oxygen evolution from water, but little is known about the factors that limit its performance photoanode. In this article, we report on highly efficient and reproducible photoanodes prepared by new spray pyrolysis recipe. For undoped films deposited transparent conducting substrate (F-doped SnO2, FTO), electron transport charge collection at back-contact were found to photoresponse. Electron could be greatly enhanced...
Understanding interfacial loss and the ways to improving property is critical fabricate highly efficient reproducible perovskite solar cells (PSCs). In SnO2 -based PSCs, nonradiative recombination sites at -perovskite interface lead a large potential performance variation in resulting photovoltaic devices. Here, novel -in-polymer matrix (i.e., polyethylene glycol) devised as electron transporting layer improve film quality of layer. The fabricated through spin-coating polymer-incorporated...
In spite of great progress in the surface modification semiconductor photoelectrodes, role metal oxide cocatalyst on photoelectrochemical (PEC) performance is still not well understood. this study, ferrihydrite (Fh) as a novel was decorated wormlike nanoporous BiVO4 photoanode. A kinetics study Fh/BiVO4 by intensity-modulated photocurrent spectroscopy (IMPS) evidences primary Fh PEC enhancement, varying with loading Fh. It found that dispersed nanoparticles accelerate hole transfer for water...
Abstract Composition engineering of halide perovskite allows the tunability band gap over a wide range so that photons can be effectively harvested, an aspect is critical importance for increasing efficiency photocatalysis under sunlight. However, poor stability and low photocatalytic activity perovskites prevent use these defect‐tolerant materials in applications involving photocatalysis. Here, alcohol‐based system dye degradation demonstrated high through double Cs 2 AgBiBr 6 . The...
Specific point was achieved for flexible MAPbI<sub>3</sub> solar cells with CPTA modified SnO<sub>2</sub> ETL.
Ethanol, mainly produced from the yeast fermentation of biomass, is one most important renewable building blocks for synthesizing value-added chemicals. Different pathways ethanol conversion, including dehydrogenation, C–C bond coupling, aromatization, hydrogen transfer, dehydration, etc., can be achieved over a variety catalysts. In this Perspective, we focus on catalytic one-pot conversion processes producing oxygen-containing The details include catalyst design strategy, selectivity...
By combining supercritical drying technique with AAO template-assisted electrodeposition, noncollapsed, vertically aligned, and free-standing nanowire arrays on a conductive Au film have been fabricated. We also demonstrate that these can be feasibly used for fabricating nanowire-based electrically driven devices.
Indium (In)-based halide perovskites are desirable for next-generation phosphors and emitting devices, due to their broad emission, nontoxicity, oxidization avoidance capabilities. However, the...
Abstract An open‐circuit voltage ( V oc ) of 1.57 under simulated AM1.5 sunlight in planar MAPbBr 3 solar cells with carbon (graphite) electrodes is obtained. The hole‐transport‐material‐free the normal architecture (FTO/TiO 2 /MAPbBr /carbon) show little hysteresis during current–voltage sweep sunlight. A solar‐to‐electricity power conversion efficiency 8.70% achieved champion device. Accordingly, it proposed that are effective to extract photogenerated holes cells, and industry‐applicable...
Organic‐inorganic hybrid perovskites have demonstrated great potential for flexible optoelectronic devices due to their superior properties and structural flexibility. However, mechanical deformation‐induced cracks at the buried interface delamination from substrate severely constrain performance device lifespan. Here, we design a two‐site bonding strategy aiming reinforce stability of SnO2/perovskite perovskite layer using multifunctional organic salt, 4‐(trifluoromethoxy)phenylhydrazine...
Organic-inorganic hybrid perovskites have demonstrated great potential for flexible optoelectronic devices due to their superior properties and structural flexibility. However, mechanical deformation-induced cracks at the buried interface delamination from substrate severely constrain performance device lifespan. Here, we design a two-site bonding strategy aiming reinforce stability of SnO2/perovskite perovskite layer using multifunctional organic salt, 4-(trifluoromethoxy)phenylhydrazine...
Alloyed ternary CdS(1-x)Se(x) nanowires were synthesized by template-assisted electrodeposition, in which the ratio of S to Se was controlled adjusting relative amounts starting materials. Higher-resolution transmission electron microscopy (HRTEM) and X-ray diffraction (XRD) showed that alloyed are highly crystalline, no phase-separated Cd observed these nanowires. Optical measurements indicated band-gap engineering can be realized through modulating composition Se. With broadly tunable...
α ‐Fe 2 O 3 thin film photoanodes for solar water splitting were prepared by spray pyrolysis of Fe(AcAc) . The donor density in the Fe films could be tuned between 10 17 –10 20 cm −3 doping with silicon. By depositing a 5 nm SnO interfacial layer and transparent conducting substrates, both reproducibility photocurrent can enhanced. effects Si presence systematically studied. highest photoresponse is obtained doped 0.2% Si, resulting 0.37 mA/cm at 1.23 V RHE 1.0 M KOH solution under 80 mW/cm...
BiVO4 has shown great potential as a semiconductor photoanode for solar water splitting. Significant improvements made during recent years allowed researchers to obtain photocurrent density of up 4.0 mA cm−2 (AM1.5 sunlight illumination, 1.23 VRHE bias). For further the photoelectrodes, deep understanding processes occurring at BiVO4–H2O interface is crucial. Employing an electrochemical loading and removal process NiOx, we show here that carrier recombination this strongly affects...
Bromide-based hybrid perovskites are of particular interest not only due to the fact that they offer a way go beyond Shockley–Queisser limit via tandem cell scheme but single-junction devices them can also achieve reasonably high efficiency with stability for solar energy conversion. However, highest power conversion achieved up now FAPbBr3 cells is 8.2%, which far below ∼17% predicted from detailed balance analysis. Here, two-step method (the intermolecule exchange pathway) was...
Abstract For solar cell applications, Sn‐based hybrid perovskites have drawn particular interest due to their environmental friendliness. Here, a thin layer of C 60 pyrrolidine tris‐acid (CPTA) is found essential for achieving high efficiency with planar cells perovskites. As result, power conversion 7.40% achieved {en}FASnI 3 n–i–p architecture, and the device exhibits excellent stability in air. first time, highly efficient perovskite on architecture are achieved. A V oc 0.72 highlighted...
Comparison of the UV-vis absorption spectra CdSe quantum dots (QDs) capped with various mercaptocarboxylic acid capping ligands reveals that only 4-mercaptobenzoic (MBzA) lower apparent optical band gap. We propose delocalization excitons in QDs is extended onto via electronic coupling to π system molecules through Cd-S bond. Furthermore, we demonstrate between and thiol influenced by strength bond can be changed protonating S atom.
Electrocatalysts that are stable and highly active at low overpotential ( η ) under mild conditions as well cost‐effective scalable eagerly desired for potential use in photo‐ electro‐driven hydrogen evolution devices. Here the fabrication characterization of a super‐active robust Cu‐Cu x O‐Pt nanoparticulate electrocatalyst is reported, which displays small Tafel slope (44 mV dec −1 large exchange current density (1.601 mA cm −2 neutral buffer solution. The catalytic this catalyst film...