A5055092140- Semiconductor Quantum Structures and Devices
- Chalcogenide Semiconductor Thin Films
- Advanced Semiconductor Detectors and Materials
- Perovskite Materials and Applications
- Liquid Crystal Research Advancements
- Random lasers and scattering media
- Quantum Dots Synthesis And Properties
- Terahertz technology and applications
- Advanced optical system design
- Advanced Optical Sensing Technologies
- Solid State Laser Technologies
- Gas Sensing Nanomaterials and Sensors
- Civil and Geotechnical Engineering Research
- ZnO doping and properties
- Advanced Fiber Laser Technologies
- Color Science and Applications
- Image Enhancement Techniques
- Water Quality Monitoring Technologies
- Remote Sensing and Land Use
- Oil Spill Detection and Mitigation
- Spectroscopy and Laser Applications
- Electronic and Structural Properties of Oxides
- Advanced Photocatalysis Techniques
- Organic Light-Emitting Diodes Research
- Ga2O3 and related materials
University of South China
2024
Wuhan University of Technology
2022
Changchun University of Science and Technology
2014-2022
Chongqing University of Science and Technology
2022
Hunan University
2020
University of Chinese Academy of Sciences
2020
ShanghaiTech University
2020
Shanghai Institute of Microsystem and Information Technology
2020
Chinese Academy of Sciences
2020
Huazhong University of Science and Technology
2015
High-quality III–V quantum structures, advanced epitaxial technologies, and characterization methods are essential to drive the development of infrared optoelectronic materials devices. As an important component type II superlattices, InAs/InxGa1−xAsySb1−y would play role in field high-performance detectors due their excellent luminescence efficiency high crystal quality. However, interfacial characteristics associated minority carrier lifetime still difficult identify. In this paper, atomic...
As a kind of semiconductor material, the morphology zinc oxide directly affects its physical properties. By adjusting ratio reaction source and rate incoming gas flow, we obtained one-dimensional nanowire two-dimensional nanoflag-like functional gradient material (FGM) using chemical vapor deposition (CVD) method. Compared with nanowires, growth ZnO FGM not only c-oriented, but other directions are also appeared. Photoluminescence results show that has higher visible/UV emission intensity...
We report the growth of InSb/CdTe hetero-epitaxial thin films on GaAs (111)B substrate using molecular beam epitaxy. The use (111) orientation enables fast strain relaxation during CdTe buffer layer growth, and major crystallographic defects are confined near CdTe/GaAs interface. Owing to lattice matching between InSb CdTe, layer-by-layer 2D is observed from initial stage. Both smooth surface morphology low defect density as-grown heterostructures give rise enhancement electron mobility when...
Aiming at the application requirements of information optics, this Letter proposed a perovskite quantum dot random lasing pumping method suitable for high-speed modulation. At same time, luminescence characteristics films under electron beam conditions are analyzed, and mechanism CsPbBr3 is revealed. Finally, it confirmed that dots easy to realize conditions.
Infrared optoelectronic devices based on type‐II superlattice structures of III–V semiconductor materials have progressed significantly during the past decades. Exploring and further expanding material space is great significance for development infrared applications. Herein, a structure InAs(Sb)/In x Ga 1− As y Sb grown using fractional monolayer alloy process to control composition presented. High‐order satellite peaks with narrow full width at half maximum (31 arcs) in X‐ray diffraction...
In this paper, we designed a pint-sized underwater pulsed lidar system for obstacles detection based on 532nm Nd-YAG laser as source and Hamamatsu photomultiplier tube (PMT) detector. order to acquire the location of obstacles, an algorithm was devised handle echo signal. Through algorithm, background noise suppressed accurate range information target obtained. A high-capacity lithium battery employed support operating long eight hours continuously. To ensure our working steady in natural...
In order to solve the bearing problem of poor foundation, thorn piles were proposed, however, construction precast is still in blank stage project. this paper, research on engineering realization method carried out. Inspired by te
In recent years, all inorganic bismuth lead-halide perovskite nanocrystals [CsPbX 3 (X[Formula: see text][Formula: text]Cl, Br, I)] have received extensive attention due to their high performance in fluorescence quantum yield, narrow emission spectrum, and adjustable range. However, the disadvantages of cost poor stability greatly limited development prospects material. Here, order develop a dot lasing cavity with chemical stability, quality factor low fabrication cost, we successfully...
Abstract Curved liquid crystal display (LCD) suffers from an issue of uneven brightness among the vertical‐alignment LCD panels based on thin glass substrates. In this work, we investigated its origin through optical simulation and successfully realized uniform brilliance for 27‐inch curved panels. The revealed that dark areas bending sides panel originated reduced azimuth angle crystals (LC) next to ITO trunk. This could be resolved by decreasing pretilt LC color filter side. Through...
A novel InAs(Sb)/InxGa1−xAsySb1−y superlattice with high-indium-content InxGa1−xAsySb1−y in the immiscibility gap has been designed and fabricated through fractional monolayer alloy growth method by Peng Du et al. (article number 1900474). Compared to InAs/GaSb superlattice, this neoteric exhibits a flexible miniband engineering ability high luminescence property, which would have great potential applications infrared optoelectronic devices.
Small bubbles are widely present in the marine environment, presence of small generated by whitecaps, microorganisms, ships sailing will greatly affect optical properties seawater. A lot work has been carried out around detection bubbles, this article introduce a method detecting underwater with way high-speed imaging underwater. The mechanisms to measure parameters mainly photography, laser interferometry and holography. advantages photography intuitive low cost, experimenters can real-time...
This paper studied the constraint mechanism for power device design based on perovskite quantum dots pumped by an electron beam. Combined with designing, experimental system of self-saturation luminescence and aging failure was designed CsPbBr3 films. On this basis, we further completed experiment constructed a model designing. Three constraints were proposed after analyzing discussing data. Firstly, too high pumping current density makes it difficult to effectively promote enhancement...
This research argues that using an electron beam with high kinetic energy to pump perovskite quantum dots can significantly boost the efficiency of low-frequency photon radiation conversion. Firstly, we measure random lasing threshold and luminescence CsPb X 3 films pumped by beam. Then, simulate spatial distribution beams in films. Combined above data, a conversion model based on is presented. could be way create terahertz source high-power output or multiply power.
A typical modulated pulse bathymetric lidar system is investigated by simulation using a system. In the simulation, return signal generated Monte Carlo method with propagation model and processed mathematical tools like cross-correlation digital filter. Computer results incorporating modulation detection scheme reveal significant suppression of water backscattering corresponding target contrast enhancement. More experiments are performed various reception variables to investigate effect them...
Curved liquid crystal displays (LCD) suffers from an issue of uneven brightness among the vertical‐alignment (VA) LCD panels based on thin glass substrates. In this work, we investigared its origin through optical simulation and successfully realized uniform brilliance for 27‐inch curved panels. The revealed that dark areas bending sides panel originated reduced azimuth angle crystals (LC) next to ITO trunk. This could be resolved by decreasing pretilt LC color filter (CF) side. Through...