A5006595708- Chalcogenide Semiconductor Thin Films
- Quantum Dots Synthesis And Properties
- Perovskite Materials and Applications
- Innovative Microfluidic and Catalytic Techniques Innovation
- 2D Materials and Applications
- Catalytic Processes in Materials Science
- TiO2 Photocatalysis and Solar Cells
- Spectroscopy and Laser Applications
- Advanced Photocatalysis Techniques
- Gas Sensing Nanomaterials and Sensors
- Laser Design and Applications
- Orbital Angular Momentum in Optics
- Microfluidic and Bio-sensing Technologies
- MXene and MAX Phase Materials
- Gold and Silver Nanoparticles Synthesis and Applications
- Phase-change materials and chalcogenides
- Advancements in Solid Oxide Fuel Cells
- Copper-based nanomaterials and applications
- Semiconductor materials and interfaces
- Ultrasonics and Acoustic Wave Propagation
- Corrosion Behavior and Inhibition
- Electrowetting and Microfluidic Technologies
- Electronic and Structural Properties of Oxides
- Catalysis and Oxidation Reactions
- Biosensors and Analytical Detection
Wuhan Textile University
2022-2025
Tongren University
2015-2024
University of Science and Technology Beijing
2024
Huazhong University of Science and Technology
2015-2023
Materials Science & Engineering
2022
Beijing National Laboratory for Molecular Sciences
2020
Chinese Academy of Sciences
2020
Institute of Chemistry
2020
Zhengzhou University
2019-2020
South China Normal University
2016-2018
Abstract Thermally-induced tensile strain that remains in perovskite films following annealing results increased ion migration and is a known factor the instability of these materials. Previously-reported regulation methods for solar cells (PSCs) have utilized substrates with high thermal expansion coefficients limits processing temperature perovskites compromises power conversion efficiency. Here we compensate residual by introducing an external compressive from hole-transport layer. By...
In-plane anisotropic layered materials such as black phosphorus (BP) have emerged an important class of two-dimensional (2D) that bring a new dimension to the properties 2D materials, hence providing wide range opportunities for developing conceptually device applications. However, all recently reported are relatively narrow-bandgap semiconductors (<2 eV), and there has been no report about this type with bandgap, restricting relevant applications polarization-sensitive photodetection in...
Abstract Metal halide perovskite solar cells (PSCs) have seen an extremely rapid rise in power conversion efficiencies the past few years. However, commercialization of this class emerging materials still faces serious challenges, one which is instability against external stimuli such as moisture, heat and irradiation. Much focus has deservedly been placed on understanding different origins intrinsic thereby enhancing their stability. Among these, tensile strain films important source that...
Abstract Polarization‐sensitive photodetection in the UV region is highly indispensable many military and civilian applications. UV‐polarized usually relies on use of wide bandgap semiconductors with 1D nanostructures requiring complicated nanofabrication processes. Although emerging anisotropic 2D shed light detection polarization a simple device architecture, bandgaps such reported are too small to be applied for visible–blind photodetection. Here, germanium disulfide (GeS 2 ), widest...
Defect passivation using oxygen has been identified as an efficient and convenient approach to suppress nonradiative recombination improve the photovoltaic performance of hybrid organic–inorganic halide perovskites (HHPs). However, can seriously undermine chemical stability HHPs due reaction superoxide with protonated organic cations such CH3NH3+ [(NH2)2CH]+, thus hindering deep understanding how affects their defect properties. Here we substitute free-proton inorganic Cs+ for moiety avoid...
Passivating defects using organic halide salts, especially chlorides, is an effective method to improve power conversion efficiencies (PCEs) of perovskite solar cells (PSCs) arising from the stronger Pb-Cl bonding than Pb-I and Pb-Br bonding. However, Cl- anions with a small radius are prone incorporation into lattice that distorts lead octahedron, degrading photovoltaic performance. Here, we substitute atomic-Cl-containing molecules for widely used ionic-Cl which not only retain efficient...
Selenium (Se) discovered in 1817 belongs to the family of chalcogens. Surprisingly, despite long history over two centuries and chemical simplicity Se, structure amorphous Se (a-Se) remains controversial date regarding dominance chains versus rings. Here, we find that vapor-deposited a-Se is composed disordered rings rather than melt-quenched a-Se. We further reveal main origin this controversy facile transition arising from inherent instability This can be inadvertently triggered by certain...
This review summarizes the recent progress of GeSe thin-film solar cells and provides a brief outlook for their further development.
Ultrafine Ru NPs encapsulated in a pyridinic-N-rich N-doped porous carbon derived from the pyrolysis of new porphyrin framework were firstly fabricated for hydrogen generation.
Selenium (Se) solar cells were the world's first solid-state photovoltaics reported in 1883, opening modern photovoltaics. However, its wide bandgap (~1.9 eV) limits sunlight harvesting. Here, we revisit oldest but long-ignored photovoltaic material with emergence of indoor (IPVs); absorption spectrum Se perfectly matches emission spectra commonly used light sources 400 to 700 nm range. We find that widely Te adhesion layer also passivates defects at nonbonded Se/TiO2 interface. By...
This work introduces a significant Co-free cathode material for proton-conducting solid oxide fuel cells (H-SOFCs) and offers deep understanding of the effect K-doping on ability absorption transportation oxygen ions protons.
Abstract Selenium (Se), the world's oldest optoelectronic material, has been widely applied in various devices such as commercial X‐ray flat‐panel detectors and photovoltaics. However, despite rare widely‐dispersed nature of Se element, a sustainable recycling other valuable materials from spent Se‐based not developed so far. Here strategy is reported that makes use significantly higher vapor pressure volatile compared to functional layers recycle all them end‐of‐life through closed‐space...
The density of states and optical properties N, S, (N, S)-doped anatase TiO2 are calculated based on the functional theory. results indicate that doping S atoms occupy Ti-atom sites in lattice. mixing O 2p, N 3p, Ti 3d forbidden gap S)-codoped can result higher visible-light photocatalytic activities than those monodoped TiO2. For comparison, was also synthesized by one-step hydrothermal method, absorption spectra obtained experiments verified reliability our calculation.
Abstract Germanium diselenide (GeSe 2 ) has recently emerged as a new member of in‐plane anisotropic 2D materials, notable for its wide bandgap 2.74 eV, excellent air stability, and high performance in polarization‐sensitive photodetection. However, the interlayer interaction GeSe never been reported, which usually plays an important role layer‐number‐dependent physical properties. Here, coupling is systematically investigated from theory to experiment. Unexpectedly, all density functional...
For the first time, a reproducible surface plasmon-enhanced optical sensor for detection of gaseous formaldehyde was proposed, which fabricated by depositing mixture CdSe@ZnS quantum dots (QDs), fumed silica (FS), and gold nanoparticles (GNs) on sphere array to meet urgent requirement rapid, sensitive, highly convenient method. Because spectral overlap between QDs GNs, fluorescence observed in film QDs/FS/GNs. When exposed molecules, enhanced quenched linearly with increase concentration...
In advanced biomedicine and microfluidics, there is a strong desire to sort manipulate various cells bacteria based on miniaturized microfluidic chips. Here, by integrating fiber tweezers into T-type channel, we report an optofluidic chip selectively trap Escherichia coli in human blood solution different sizes shapes. Furthermore, simulate the trapping pushing regions of other bacteria, including rod-shaped sphere-shaped cancer finite-difference analysis. With advantages controllability,...
In-plane anisotropic two-dimensional (2D) materials, especially black phosphorus and ReS2, have attracted significant interest recently as they can provide one more dimension to manipulate their physical properties when compared with isotropic 2D materials. As a representative material, germanium monosulfide (GeS) has emerged new research hot topic in this field because of its unique in-plane properties. Despite the rapid growing progress study GeS, many fundamental optical anisotropies are...