A5100328281- GaN-based semiconductor devices and materials
- Ga2O3 and related materials
- Electrochemical sensors and biosensors
- ZnO doping and properties
- Nanomaterials for catalytic reactions
- Advanced biosensing and bioanalysis techniques
- Enzyme Catalysis and Immobilization
- Arsenic contamination and mitigation
- Advanced Photocatalysis Techniques
- Glycosylation and Glycoproteins Research
- Catalysis for Biomass Conversion
- Heavy metals in environment
- Conducting polymers and applications
- Sulfur-Based Synthesis Techniques
- Fuel Cells and Related Materials
- Intermetallics and Advanced Alloy Properties
- Catalytic Cross-Coupling Reactions
- Analytical Chemistry and Sensors
- Nanocluster Synthesis and Applications
- Catalysis and Hydrodesulfurization Studies
- Electromagnetic Effects on Materials
- Ammonia Synthesis and Nitrogen Reduction
- Optical Coatings and Gratings
- Electrochemical Analysis and Applications
- Plasmonic and Surface Plasmon Research
Huazhong University of Science and Technology
2015-2024
Nankai University
2024
Wuhan University of Science and Technology
2024
Wuhan National Laboratory for Optoelectronics
2015-2020
Iowa State University
2019
Fuzhou University
2016
Tianjin Medical University
2015
Reasonable design of low-cost, high-efficiency and stable bifunctional oxygen electrocatalysts is great significance to improve the reaction efficiency Zn-air batteries, which still a huge challenge. Here, we report highly efficient electrocatalyst with three-dimensional (3D) N-doped graphene network-supported cobalt oxide nanoparticles (Co/CoO-NG), can be in situ synthesized by inducing metal ions on plates via as an inducer. This 3D network structure open active center show excellent...
In this work, combined analysis of internal strain effects on optical polarization and quantum efficiency (IQE) were conducted for the first time. Deep ultraviolet light extraction AlGaN multiple wells (MQWs) have been investigated by means polarization-dependent photoluminescence (PD-PL) temperature-dependent (TD-PL). With increase compressive applied to MQWs an underlying n-AlGaN layer, degree (DOP) sample was improved from -0.26 -0.06 leading significant enhancement (LEE) as PL intensity...
Anisotropic optical polarization of AlGaN has been one the major challenges responsible for poor efficiency AlGaN-based ultraviolet light emitting diodes (UV LEDs). In this work, we experimentally investigated effect internal strain on epilayers which were pseudomorphically grown Al x Ga1?x N templates with composition changing from 0.1 to 0.42. High-resolution x-ray diffraction and reciprocal space mapping conducted determine crystal quality status. Polarization-dependent photoluminescence...
In this study, the in situ reduction of Ch/HA hydrogel with adsorbed Cu 2+ was used for efficient catalytic 4-nitrophenol, which provides a new idea reuse water treatment agents and secondary pollution.
Polyacrylonitrile ultrafiltration membranes have been widely used in many separation processes. In this paper, horseradish peroxidase was immobilized onto polyacrylonitrile membrane by crosslinking with glutaraldehyde. The enzyme possessed a protein loading of 0.025 mg/cm 2 and specific activity 105 U/mg (105 μmol/min/mg ). initial modified were observed using SEM FTIR. Potential applications HRP investigated the removal phenol through oxidation addition hydrogen peroxide. optimum pH...
ADVERTISEMENT RETURN TO ISSUEPREVNoteNEXTA Synthesis of Dihydro Eurotiumide B via a Tandem Butenolide Annulation/Reductive Thiolation ReactionShuai WangShuai WangDepartment Chemistry, Iowa State University, Ames, 50011, United StatesMore by Shuai Wang and George A. Kraus*George KrausDepartment States*E-mail: [email protected]More Kraushttp://orcid.org/0000-0002-3037-8413Cite this: J. Org. Chem. 2019, 84, 24, 16329–16332Publication Date (Web):November 20, 2019Publication History Received8...
Nonpolar a-plane n-ZnO/p-AlGaN heterojunction light-emitting diodes (LEDs) have been prepared on r-sapphire substrate using metal organic chemical vapor deposition and a pulsed laser method. The dominant electroluminescence emission at 390 nm from the interband transition in n-ZnO layer under forward bias was observed. Interestingly, with 385 based an avalanche mechanism also achieved reverse bias. mechanisms of both I–V characteristics are discussed detail by considering effect. It is...
The full-spatial decomposition of transverse electric (TE)/transverse magnetic (TM) mode in AlGaN-based deep ultraviolet light-emitting diodes (DUV-LEDs) has been experimentally investigated by introducing self-built light intensity test system mainly composed angle resolution bracket, Glan–Taylor prism and spectrometer. Through roughening the sapphire sidewall, extraction efficiency DUV-LED is improved, for both TE TM with no polarization selectivity. introduction metrology reflected via...
Abstract Carrier localization effect has been observed in GaN/AlGaN multiquantum wells (MQWs) by analyzing the temperature dependent photoluminescence (PL) results. Specifically, two neighbouring peaks can be seen PL spectra with an abnormal variation when increasing temperature. A conduction band model minimal potentials corresponding to carrier localizations is proposed explain spectra. (© 2015 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Abstract Quasi‐one‐dimensional gold grating with Si 3 N 4 cap layer has been studied to enhance the optical coupling of AlGaN/GaN quantum well infrared photodetector (QWIP) by finite element method (FEM). The averaged |E z | 2 across whole region reaches 1.49 (V/m) when electric field intensity (|E 0 ) normal incidence is 1 at 4.6 μm, showing 1.9 times increase compared that obtained via bare grating. results show plays an indispensable role in inducing component E perpendicular...