A5100956679- GaN-based semiconductor devices and materials
- Ga2O3 and related materials
- Semiconductor Quantum Structures and Devices
- Nanowire Synthesis and Applications
- Semiconductor materials and devices
- ZnO doping and properties
- Advanced Semiconductor Detectors and Materials
- Advanced Photocatalysis Techniques
- Photocathodes and Microchannel Plates
- Quantum Dots Synthesis And Properties
- Carbon Nanotubes in Composites
- Graphene research and applications
- Copper-based nanomaterials and applications
- TiO2 Photocatalysis and Solar Cells
- Nanomaterials for catalytic reactions
- Advancements in Semiconductor Devices and Circuit Design
- Immune Cell Function and Interaction
- CAR-T cell therapy research
- Silicon Nanostructures and Photoluminescence
- Advanced Nanomaterials in Catalysis
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Force Microscopy Techniques and Applications
- Wnt/β-catenin signaling in development and cancer
- Gold and Silver Nanoparticles Synthesis and Applications
Changchun Institute of Optics, Fine Mechanics and Physics
2015-2024
Chinese Academy of Sciences
2015-2024
Anhui University of Traditional Chinese Medicine
2021-2024
Southeast University
2024
University of Chinese Academy of Sciences
2016-2024
State Key Laboratory of Digital Medical Engineering
2024
Research Center for Eco-Environmental Sciences
2024
Space Engineering University
2023-2024
Regeneron (United States)
2003-2023
Peking University
2021
Realization of highly responsivity UV detectors is a critical challenge for accelerating the application detectors. Exploiting nanoplasmonic enhancement, Ag nanoparticles have been formed on GaN surface and detector has enhanced about 30 times compared with that without nanoparticles. Detailed facts importance to specialist readers are published as "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset. They made available submitted by authors. Please note:...
Epithelial (E)-cadherin-mediated cell-cell junctions play important roles in the development and maintenance of tissue structure multicellular organisms. E-cadherin adhesion is thus a key element cellular microenvironment that provides both mechanical biochemical signaling inputs. Here, we report vitro reconstitution junction-like structures between native living cells extracellular domain (E-cad-ECD) supported membrane. Junction formation this hybrid live cell-supported membrane...
Abstract The tunability of surface plasmon resonance can enable the highest degree localised enhancement to be achieved, based on emitting or absorbing wavelength. In this article, tunable dipole resonances Ag nanoparticles (NPs) are realized by modification SiO 2 dielectric layer thicknesses. layers both beneath and over NPs affected wavelengths local plasmons (LSPs). By adjusting thickness from 5 nm 20 nm, shifted 470 410 nm. Meanwhile, after sandwiching growing before fabrication then...
Autophagy reduces tumor cell sensitivity to T killing; thus, inhibiting autophagy may improve cell–engaging therapies.
The lipophilic iminosugar N-[5-(adamantan-1-ylmethoxy)pentyl]-1-deoxynojirimycin (2, AMP-DNM) potently controls hyperglycemia in obese rodent models of insulin resistance. reduction visceral glycosphingolipids by 2 is thought to underlie its beneficial action. It cannot, however, be excluded that concomitant inhibition intestinal glycosidases and associated buffering carbohydrate assimilation add this. To firmly establish the mode action 2, we developed a panel iminosugars varying...
Type I cadherin cell-adhesion proteins are similar in sequence and structure yet different enough to mediate highly specific cell-cell recognition phenomena. It has previously been shown that small differences the homophilic heterophilic binding affinities of type family members can account for differential cell-sorting behavior. Here we use a combination X-ray crystallography, analytical ultracentrifugation, surface plasmon resonance double electron-electron (DEER) electron paramagnetic...
An asymmetric Schottky barrier metal-semiconductor-metal (MSM) ultraviolet (UV) detector with Ni/GaN/Au structure was designed and the effect of on response investigated. This had at 0 V bias increased responsivity when a positive applied to Ni/GaN contact; however, internal gain disappeared negative this point. contrasts symmetric Ni/GaN/Ni MSM UV which no under positive/negative almost bias. The improved performance because lower work function Au causing reduction hence enhancing...
The influence of threading dislocations on the properties GaN-based metal-semiconductor-metal (MSM) ultraviolet photodetectors was investigated. It found that screw had a strong dark current photodetectors, while edge predominant effect their responsivity. increased as dislocation density due to lowering Schottky barrier height. However, responsivity decreased with increasing because dangling bonds along those lines which enhance recombination photogenerated electron-hole pairs. results...
Abstract A surface plasmon (SP) is a fundamental excitation state that exists in metal nanostructures. Over the past several years, performance of optoelectronic devices has been improved greatly via SP enhancement effect. In our previous work, responsivity GaN ultraviolet detectors was increased by over 30 times when using Ag nanoparticles. However, physics effect not established definitely because lack experimental evidence. To reveal physical origin this enhancement, Kelvin probe force...
Magnetically retrievable Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>@ZnO/CdS microspheres with a well-designed core–shell structure and excellent visible-irradiation photocatalytic performance were successfully synthesized.
We studied the two-step growth of AlN using high-temperature (HT) metal–organic chemical vapour deposition (MOCVD) a 405 nm short-wavelength in situ monitoring system. First, an nucleation layer (NL) was grown on sapphire at 950 °C before HT-AlN film 1300 °C. The wavelength reflectance-transient curves revealed evolution growth. reflectance intensity signal first decreased during and then became stronger until it reached steady state large equal amplitude, revealing that underwent transition...
The optimized growth of AlN templates <italic>via</italic> a mesothermal interlayer method for high performance back-illuminated AlGaN-based solar-blind ultraviolet photodetectors is shown.
An enhanced spectral response was realized in an AlGaN-based solar-blind ultraviolet (SB-UV) detector using aluminum (Al) nanoparticles (NPs) of 20-60 nm. The peak responsivity the (about 288 nm) with 60 nm Al NPs is more than two times greater that a without under 5-V bias, reaching 0.288 A/W. To confirm enhancement mechanism NPs, extinction spectra were simulated time-domain and frequency-domain finite-element methods. calculation results show dipole surface plasmon resonance wavelength...
In this paper, the fabrication, characterization, and application in oxygen sensing are reported for a novel multifunctional nanomaterial of [Ru(bpy)2phen-MMS] (bpy, 2,2′-bipyridyl; phen, phenathrolin) which was simply prepared by covalently grafting ruthenium(II) polypyridyl compounds into channels magnetic mesoporous silica nanocomposites (MMS). Scanning electron microscopy, transmission Fourier transform infrared spectroscopy, X-ray diffraction, N2 adsorption–desorption, superconducting...
Abstract High spectral response of self-driven GaN-based ultraviolet detectors with interdigitated finger geometries were realized using Schottky and near-ohmic contacts. Ni/GaN/Cr, Ni/GaN/Ag Ni/GaN/Ti/Al designed zero bias responsivities proportional to the barrier difference between contacts 0.037 A/W, 0.083 A/W 0.104 respectively. Voltage-dependent photocurrent was studied, showing high gain under forward bias. Differences electron hole mobility model trapping considered be main...
GaN metal-semiconductor-metal (MSM) ultraviolet detectors were investigated by depositing different density of SiO2 nanoparticles (SNPs) on the GaN. It was shown that dark current with SNPs more than one order magnitude lower without and peak responsivity enhanced after deposition SNPs. Atomic force microscopy observations indicated usually formed at termination screw mixed dislocations, further current-voltage measurements showed leakage Schottky contact for MSM detector decreased deposited...