A5100655690- GaN-based semiconductor devices and materials
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- ZnO doping and properties
- Metal-Organic Frameworks: Synthesis and Applications
- Thermal Radiation and Cooling Technologies
- Metal and Thin Film Mechanics
- Thermal properties of materials
- Advanced Thermoelectric Materials and Devices
- Mesoporous Materials and Catalysis
- Thermal Expansion and Ionic Conductivity
- Optical Coherence Tomography Applications
- Gas Sensing Nanomaterials and Sensors
- Polymer crystallization and properties
- Organic Light-Emitting Diodes Research
- Environmental remediation with nanomaterials
- Face recognition and analysis
- Solar-Powered Water Purification Methods
- Organic Electronics and Photovoltaics
- Solar Thermal and Photovoltaic Systems
- Silicon Carbide Semiconductor Technologies
- Chalcogenide Semiconductor Thin Films
- Cognitive Radio Networks and Spectrum Sensing
- Power Line Communications and Noise
- Energetic Materials and Combustion
Jinan University
2025
Nanjing University of Information Science and Technology
2024
Hebei University
2020-2024
Nanyang Technological University
2024
Hebei University of Technology
2023
Beijing Institute of Technology
2022
Beijing University of Posts and Telecommunications
2013
Xidian University
2011
National Cheng Kung University
2010
Zhejiang University
2006-2007
Abstract Benefiting from the broken symmetry, 2D 3R‐ZnIn 2 S 4 exhibits unique optoelectronic properties and has gradually attracted attention. Herein, optical ultrafast exciton dynamics in nanoflakes are systematically investigated. The thickness‐dependent Raman, absorption, photoluminescence (PL) spectra measured to reveal importance of thickness engineering tuning . Especially, characteristics self‐trapped excitons (STEs), featuring a broad PL spectrum significant Stokes shift relative...
Element doping and nano-inclusion embedding are effective approaches to enhance the electrical conductivities decrease lattice thermal of thermoelectric (TE) materials, respectively. However, intrinsic low high properties severely sacrificed, final figure merit (ZT) is usually restricted. In this study, Ag Pt quantum dot (QD) were synchronously achieved via Ag/Pt alloy QDs into higher manganese silicides avoid conventional single-element strategy. The power factor (at 823 K) was enhanced...
Abstract Amidst the growing demand for sustainable and clean energy sources, need efficient scalable technologies capable of harnessing low-temperature thermal gradients has become increasingly crucial. Low-gradient thermopower cells emerge as a promising solution to this challenge, offering ability generate electricity from small temperature differences encountered in diverse applications, including industrial processes, waste heat recovery, environmental monitoring. These novel conversion...
First-order Raman scatterings of hexagonal GaN layers deposited by the hydride vapour phase epitaxy and metal-organic chemical deposition on SiC sapphire substrates are studied in a temperature range between 303 K 503 K. The dependences two modes (A1 (LO) E2 (high)) obtained. We focus our attention dependence (high) mode find that for different types epilayers their somewhat different. compare differences give them an explanation. simplified formulas we obtained good accordance with...
The anisotropic strain of a nonpolar (110) a-plane GaN epilayer on an r-plane (102) sapphire substrate, grown by low-pressure metal-organic vapour deposition is investigated Raman spectroscopy. room-temperature scattering spectra are measured in surface and edge backscattering geometries. lattice contracted both the c- m-axis directions, stress direction larger than that c-axis direction. On this sample, number cracks appear only along m-axis, which confirmed scanning electron micrograph....
New twistacene 1 and its CH 3 , OH, OCH NH 2 F, CN NO derivatives were simulated their photoelectronic charge transport properties investigated via theoretical calculations.
Nonpolar (110) and semipolar (112) GaN are grown on r-plane m-plane sapphire by MOCVD to investigate the characteristics of basal plane stacking faults (BSFs). Transmission electron microscopy reveals that density BSFs for nonpolar a-plane template is 3×105 cm−1 8×105 cm−1, respectively. The shows an arrowhead-like structure, has a much smoother morphology with streak along c-axis. Both have very strong BSF luminescence due optically active character BSFs.
We study on the energy detection algorithm of spectrum sensing. The performance in sensing is measured by false alarm probability and missing probability. In a certain sharing environment, whether can meet our requirement depending length observation time decision threshold selected. Several experiment results have shown that: when too low, it will cause much more alarm; high, bring many detection. Therefore, crucial that choosing an optimal according to time. this paper, closed-form...
Fiber-tip lens not only makes the optical system more flexible and compact, but also eliminates complex alignment process, which it widely used in fields of spatial light-fiber coupling, laser direct writing fiber optic imaging. Compared to traditional glass lens, metalens is easier be processed integrated on tip because its special planar structure small footprint. with high efficiency achromatic focusing ability has great application potential multimode endoscope other imaging systems, so...