A5100708282- GaN-based semiconductor devices and materials
- Ga2O3 and related materials
- ZnO doping and properties
- Semiconductor materials and devices
- Gas Sensing Nanomaterials and Sensors
- Nanoplatforms for cancer theranostics
- Photocathodes and Microchannel Plates
- Vehicle emissions and performance
- Advanced oxidation water treatment
- Silicon Carbide Semiconductor Technologies
- Nanowire Synthesis and Applications
- Semiconductor Quantum Structures and Devices
- Thermal Radiation and Cooling Technologies
- Metal-Organic Frameworks: Synthesis and Applications
- Photonic and Optical Devices
- Water Treatment and Disinfection
- Analytical Chemistry and Sensors
- Radio Frequency Integrated Circuit Design
- Perovskite Materials and Applications
- Advanced Photocatalysis Techniques
- Air Quality and Health Impacts
- Advanced Memory and Neural Computing
- Catalytic Processes in Materials Science
- Advancements in Semiconductor Devices and Circuit Design
- Advanced Nanomaterials in Catalysis
University of Science and Technology of China
2019-2025
Zhejiang Chinese Medical University
2024-2025
Beihang University
2024-2025
Changchun Institute of Applied Chemistry
2021-2024
Hong Kong University of Science and Technology
2024
University of Hong Kong
2024
Ministry of Agriculture and Rural Affairs
2024
Chinese Academy of Sciences
2022-2024
Harbin Institute of Technology
2019-2024
Institute of Microelectronics
2024
Energy-saving photodetectors are the key components in future photonic systems. Particularly, self-powered photoelectrochemical-type (PEC–PDs), which depart completely from classical solid-state junction device, have lately intrigued intensive interest to meet next-generation power-independent and environment-sensitive photodetection. Herein, we construct, for first time, solar-blind PEC PDs based on self-assembled AlGaN nanostructures silicon. Importantly, with proper surface platinum (Pt)...
The investigation of electrical and optical properties micro-scale AlGaN deep ultraviolet (DUV) light-emitting diodes (LEDs) emitting at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mrow class="MJX-TeXAtom-ORD"> <mml:mo>∼<!-- ∼ --></mml:mo> </mml:mrow> <mml:mn>275</mml:mn> <mml:mspace width="thickmathspace" /> <mml:mi mathvariant="normal">n</mml:mi> mathvariant="normal">m</mml:mi> </mml:math> was carried out, with an emphasis on fabricated devices having a...
In this work, we demonstrate a high-performance ultraviolet phototransistor (UVPT) based on the AlGaN/GaN high-electron mobility transistor (HEMT) configuration. When device is biased at off state, peak photoresponsivity (R) of 3.6 × 107 A/W under 265 nm illumination and 1.0 106 365 can be obtained. Those two R values are one highest among reported UVPTs same detection wavelength off-state conditions. addition, investigate gate-bias (VGS) dependent photoresponse fabricated with assistance...
III-V semiconductor nanowires are indispensable building blocks for nanoscale electronic and optoelectronic devices. However, solely relying on their intrinsic physical material properties sometimes limits device functionalities to meet the increasing demands in versatile complex world. By leveraging distinctive nature of one-dimensional geometry large surface-to-volume ratio nanowires, new can be attained through monolithic integration conventional with other easy-synthesized functional...
Abstract Herein we present a new way to encapsulate neural stem cells (NSCs) by using hydrogen‐bonded organic frameworks (HOFs) overcome the common causes of low therapeutic efficacy during NSC transplantation: 1) loss fundamental cell properties, “stemness”, before transplantation, 2) cytomembrane damage and 3) apoptosis due oxidative stress after transplantation. Porous carbon nanospheres (PCNs) are doped into HOF shell process mineralization endow cellular exoskeletons with hierarchical...
High-quality imaging units are indispensable in modern optoelectronic systems for accurate recognition and processing of optical information. To fulfill massive complex tasks the digital age, devices with remarkable photoresponsive characteristics versatile reconfigurable functions on a single-device platform demand but remain challenging to fabricate. Herein, an AlGaN/GaN-based double-heterostructure is reported, incorporated unique compositionally graded AlGaN structure generate channel...
Optoelectronic synapses, leveraging the integration of classic photo-electric effect with synaptic plasticity, are emerging as building blocks for artificial vision and photonic neuromorphic computing. However, fundamental working principles most optoelectronic synapses mainly rely on physical behaviors while missing chemical-electric processes critical mimicking biorealistic functionality. Herein, we report a photoelectrochemical device based p-AlGaN/n-GaN semiconductor nanowires to...
Abstract Searching for power‐independent, compact, and highly environment‐sensitive photodetectors is a critical step towards the realization of next‐generation energy‐efficient sustainable integrated optoelectronic systems. Particularly, deep ultraviolet (UV) band, which has large photon energy, extremely suitable environment monitoring invisible light communication application. Herein, demonstration self‐powered UV solar‐blind in photoelectrochemical (PEC) cell configuration reported,...
In this Letter, we perform a comprehensive investigation on the optical characterization of micro-sized deep-ultraviolet (DUV) LEDs (micro-LEDs) emitting below 280 nm, highlighting light extraction behavior in relation to design chip sidewall angle. We found that micro-LEDs with smaller inclined angle ( <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mrow class="MJX-TeXAtom-ORD"> <mml:mo>∼</mml:mo> </mml:mrow> <mml:msup> <mml:mn>33</mml:mn> <mml:mo>∘</mml:mo>...
Abstract The intriguing surface sensitivity of the single‐crystalline semiconductor nanowires offers tremendous opportunity in tuning physical properties nanophotonic and nanoelectronic devices for versatile applications. Particularly, pursuit emerging photoelectrochemical (PEC)‐type devices, significant efforts have been devoted to understanding charge transfer dynamics between electrolyte. Here, a PEC‐type ultraviolet photodetector consisting GaN p ‐ n junction as photoelectrodes is...
In this work, we investigated the temperature-dependent photodetection behavior of a high-performance AlGaN/GaN-based ultraviolet phototransistor (UVPT) operating under 265 nm illumination. As temperature continuously rises from room to 250 °C, photocurrent device increases in beginning but suffers degradation afterwards. This can be explained by competing process between generation and recombination rate photo-induced carriers UVPT at high temperatures. Intriguingly, found that optimal for...
Abstract The emerging photoelectrochemical‐type photodetector (PEC‐PD), because of its unique device architecture by using an aqueous electrolyte, is naturally applicable in the pursuit underwater optical communication without sophisticated packaging and assembling. Unfortunately, traditional PEC detecting process typically involves a large electrochemical workstation with long cables wire connections for photo signal acquisition, which hinders applications wireless communication. In this...
Abstract The carrier transport dynamics at the surface/interface of semiconductors determine electronic and optical properties devices. Thus, precise control their dynamic processes while understanding nature these characteristics is crucial for modulating device functionalities. Here, a photoelectrochemical‐type photosensor built using monocrystalline p‐GaN nanowires on Si platform, which unambiguously exhibits either positive or negative photocurrent upon different light illumination. Such...
Optical wireless communication (OWC) systems are emerging as a crucial technique for the development of next-generation data transmission and acquisition, with particular interest in solar-blind deep-ultraviolet (DUV) well visible-light (VL) band, owing to their superior advantages either free space or underwater application scenarios. A light-emitting device, which normally acts signal transmitter OWC, capable generating dual wavelengths, would certainly expand capacity functionality OWC....
Abstract Underwater optical communication (UOC) has attracted considerable interest in the continuous expansion of human activities marine/ocean environments. The water‐durable and self‐powered photoelectrodes that act as a battery‐free light receiver UOC are particularly crucial, they may directly face complex underwater conditions. Emerging photoelectrochemical (PEC)‐type photodetectors appealing owing to their intrinsic aqueous operation characteristics with versatile tunability...
Abstract The elementary electronic‐logic‐gates, performing basic logic functions using electric signals as input, act a building block of modern digital circuits. Intriguingly, the optoelectronic‐logic‐gates (OLGs), composed optical devices, are emerging new platform which enables faster and large‐capacity data transmission processing by photons input. However, strict operation principle classic for example, unidirectional photoresponse photodetector, restricts functional enrichment OLGs....
Abstract The development of artificial tetrachromatic vision holds great potential to enhance human color perception and discrimination, thereby enabling more effective navigation in diverse environments. Herein, an synaptic device is presented built upon 2D‐3D vertically stacked semiconductors composed tungsten diselenide (WSe 2 )‐gallium nitride (GaN) configuration, forming a dual‐channel floating gate transistor (FGT). Under the concerted influence electrical optical stimulation,...