A5013880258- GaN-based semiconductor devices and materials
- Mesoporous Materials and Catalysis
- Optical Wireless Communication Technologies
- Advanced Polymer Synthesis and Characterization
- Ga2O3 and related materials
- Advanced Photocatalysis Techniques
- Silicone and Siloxane Chemistry
- Advanced Photonic Communication Systems
- ZnO doping and properties
- Underwater Vehicles and Communication Systems
- Polyoxometalates: Synthesis and Applications
- Catalysis and Oxidation Reactions
- Photonic and Optical Devices
- Nanowire Synthesis and Applications
- Nanoparticle-Based Drug Delivery
- Microwave-Assisted Synthesis and Applications
- Quantum Dots Synthesis And Properties
- Iron oxide chemistry and applications
- Hydrogels: synthesis, properties, applications
- Catalytic Cross-Coupling Reactions
- Catalytic Processes in Materials Science
- Catalytic C–H Functionalization Methods
- Characterization and Applications of Magnetic Nanoparticles
- Synthesis of Tetrazole Derivatives
- Carbon dioxide utilization in catalysis
Guangxi University
2025
South China Agricultural University
2024
Vision Technology (United States)
2023
King Abdullah University of Science and Technology
2016-2020
Zhengzhou University
2003-2014
Nankai University
2007-2012
China Institute of Daily Chemical Industry
2010
University of Chinese Academy of Sciences
2007
Dalian Institute of Chemical Physics
2007
Chinese Academy of Sciences
2007
The video streaming, data transmission, and remote control in underwater call for high speed (Gbps) communication link with a long channel length (~10 meters). We present compact low power consumption wireless optical (UWOC) system utilizing 450-nm laser diode (LD) Si avalanche photodetector. With the LD operating at driving current of 80 mA an 51.3 mW, we demonstrated high-speed UWOC offering rate up to 2 Gbps over 12-meter-long, 1.5 record 20-meter-long channel. measured bit-error (BER)...
Optical wireless communication (OWC) using the ultra-broad spectrum of visible-to-ultraviolet (UV) wavelength region remains a vital field research for mitigating saturated bandwidth radio-frequency (RF) communication. However, lack an efficient UV photodetection methodology hinders development UV-based The key technological impediment is related to low UV-photon absorption in existing silicon photodetectors, which offer low-cost and mature platforms. To address this technology gap, we...
Underwater wireless optical communication (UWOC) is a technology that uses visible light to transmit data in underwater environment. Compared radio-frequency (RF) and acoustic techniques, UWOC has many advantages including large information bandwidth, unlicensed spectrum low power requirements. This review paper provides an overview of the latest research. Additionally, we present detailed description transmitter receiver technologies which are key components systems. Moreover, studies...
This paper presents the first demonstration of InGaN multiple quantum well (MQW) based micro-photodetectors (µPD) used as optical receiver in orthogonal frequency-division multiplexing (OFDM) modulated visible communication system (VLC). The 80-µm diameter µPD exhibits a wavelength-selective responsivity near-UV to violet regime (374 nm - 408 nm) under low reverse bias -3 V. modulation scheme 16-quadrature amplitude (16-QAM) OFDM enables use frequency response beyond dB cutoff bandwidth µPD....
Abstract This paper investigated the use of semipolar InGaN/GaN multiple quantum well based micro-photodetectors ( μ PDs) as optical receiver for visible light communication (VLC). The fabricated PDs exhibited a low dark current 1.6 pA at −10 V, responsivity 0.191 A W −1 , and −3 dB modulation bandwidth 347 MHz. high data rate up to 1.55 Gbit s was achievable by utilizing extended more than dB, on straight-forward non-return-to-zero on–off keying scheme. development demonstrated feasibility...
Gold/silica/poly(N,N'-methylenebisacrylamide) (Au/SiO2/polyMBAAm) trilayer composite materials were prepared by distillation precipitation polymerization of N,N'-methylenebisacrylamide (MBAAm) in the presence Au/SiO2 particles as seeds, which seeds a combination gold-complexing and silane coupling agent with further modified Stöber method. The MBAAm was performed neat acetonitrile 2,2'-azobisisobutyronitrile an initiator to encapsulate driven hydrogen-bonding interaction between hydroxyl...
InGaN-based nanowires (NWs) have been investigated as efficient photoelectrochemical (PEC) water splitting devices.In this work, the InGaN/GaN NWs were grown by molecular beam epitaxy (MBE) having InGaN segments on top of GaN seeds.Three axial heterojunction structures constructed with different doping types and levels, namely n-InGaN/n-GaN NWs, undoped (u)-InGaN/p-GaN p-InGaN/p-GaN NWs.With carrier concentrations estimated Mott-Schottky measurements, a PC1D simulation further confirmed band...
Abstract Highly crosslinked cauliflower‐like poly( N , ′‐methylenebisacrylamide) particles were prepared by distillation precipitation polymerization in neat acetonitrile with 2,2′‐azobisisobutyronitrile as initiator. Monodisperse hydrophilic polymer microspheres various functional groups, such amide, pyrrolidone and carboxylic acid, a spherical shape smooth surface the size range 120–600 nm copolymerizations of comonomers including ‐isopropylacrylamide, ‐vinylpyrrolidone, methacrylic acid...
Ellipsoidal trilayer hematite/silica/poly(divinylbenzene) hybrid particles were prepared by distillation precipitation polymerization of divinyl benzene (DVB) in the presence hematite/3-(methacryloxy)propyl trimethoxysilane (MPS)-modified silica (SiO(2)) core-shell as seeds. The DVB was performed neat acetonitrile with 2,2'-azobisisobtyronitrile (AIBN) initiator to coat hematite/MPS-modified SiO(2) seeds through capture oligomer radicals aid a vinyl group on surface absence any stabilizer or...
There have been recent research advances in AlGaN-based self-assembled nanowires (NWs) as building blocks for ultraviolet (UV) optoelectronics grown by plasma-assisted molecular beam epitaxy. We review the basic growth kinetics on various foundry-compatible-metal/silicon-based substrates and epistructure design UV devices. highlight use of diffusion-barrier-metal thin film silicon substrate a solution to enhance device performance. NWs offer opportunity mitigate detrimental quantum-confined...
Conventional chemotherapy and radiation therapy are often insufficient in eliminating cancer accompanied by severe side effects, due to a lack the specificity of their targeting. Magnetic iron nanowires have made great contribution nanomedicine field because low toxicity ease manipulation with magnetic field. Recently, they been used resonance imaging wireless magnetomechanical photothermal treatments. The addition active targeting moieties these thus creates multifunctional tool that can...
Visible light communication (VLC) has drawn significant attention in recent years. Though high-speed visible-light sources have seen advances, commercially available photodetectors low wavelength selectivity and modulation bandwidth the near-violet-blue wavelengths, making them a bottleneck VLC links. Here we show record 7.4-Gbit/s link using wavelength-selective, (2021)-oriented, semipolar InGaN/GaN multiple-quantum-well micro-photodetector (μPD) on GaN substrate. This is achieved by...
Abstract Monodisperse functional silica/polymer core–shell hybrid microspheres were prepared by a two‐stage reaction with silica grafting of 3‐(methacryloxy)propyl trimethoxysiliane (MPS) as core and polymer shell having various groups such chloromethyl, pyridyl, carboxylic acid, hydroxyl, ester. MPS‐modified was synthesized the Stöber method subsequently grafted MPS first‐stage reaction. The then encapsulated over distillation precipitation copolymerization divinylbenzene (DVB) crosslinker...
Introducing dopants into InGaN NWs is known to significantly improve their device performances through a variety of mechanisms. However, further optimize operation under the influence large specific surfaces, thorough knowledge ultrafast dynamical processes at surface and interface these imperative. Here, we describe development four-dimensional scanning electron microscopy (4D S-UEM) as an extremely surface-sensitive method directly visualize in space time enormous impact silicon doping on...
Laser diode based visible light communication link with data rate of 2.2 Gbps over a 12-meter underwater channel is reported using non-return-to-zero on-off keying modulation scheme. The optical wireless beyond 10-meter can be achieved lasers.