Results 11 to 20 of about 3,005 (217)

Deep Ultraviolet Light Emitting Diode Based on Aluminum Gallium Nitride

Highlights in Science, Engineering and Technology
AlGaN-based deep ultraviolet LED has gradually attracted people's attention, because it can be used in sterilization, secret communication and other fields. According to the research report of nearly twenty years, there are still many shortcomings in the external quantum efficiency, internal quantum efficiency and light extraction efficiency of AlGaN ...
Xinyi Sui
openaire   +3 more sources

Solar-Blind Optical Wireless Communications Over 80 Meters Using a 265-nm High-Power Single-Chip DUV-LED Over 500 mW in Sunlight

IEEE Photonics Journal, 2023
Direct eye-pattern measurements based on a deep-ultraviolet (DUV) light emitting diode (LED) optical wireless communication system were performed in sunlight.
Hiroyuki Kurosawa, Sachiko Tsuzuki, Manabu Taniguchi, Shin-ichiro Inoue   +3 more
doaj   +1 more source

Influence of Thin Fluorine Resin Film on DUV LED Packaging Devices

Applied Sciences, 2023
Amorphous fluorine resin is a promising material that can be used for the encapsulation of deep-ultraviolet light-emitting diodes (DUV LEDs) to promote the light output, due to its light characteristics which mean it shows no absorption in the DUV ...
Wenbo Li, Leming Tang, Yong Yang, Zhicong Zhang, Guanghui Li, Meixin Feng, Qiming Xu, Qian Sun   +7 more
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Theoretical and Computational Analysis of a Wurtzite-AlGaN DUV-LED to Mitigate Quantum-Confined Stark Effect with a Zincblende Comparison Considering Mg- and Be-Doping

Nanomaterials, 2022
In this work, an AlGaN-based Deep-Ultraviolet Light-Emitting Diode structure has been designed and simulated for the zincblende and wurtzite approaches, where the polarization effect is included.
Horacio I. Solís-Cisneros, Yaoqiao Hu, Jorge L. Camas-Anzueto, Rubén Grajales-Coutiño, Abdur-Rehman Anwar, Rubén Martínez-Revuelta, Héctor R. Hernández-de-León, Carlos A. Hernández-Gutiérrez   +7 more
doaj   +1 more source

Polarization Self-Screened Multiple Quantum Wells for Deep Ultraviolet Light-Emitting Diodes to Enhance the Optical Power

IEEE Photonics Journal, 2021
We experimentally and numerically propose a deep ultraviolet light-emitting diode (DUV LED) possessing the quantum barriers (QBs) with the gradually reduced Al composition along the [0001] orientation.
Chunshuang Chu, Kangkai Tian, Hua Shao, Jiamang Che, Yonghui Zhang, Zi-Hui Zhang   +5 more
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Anomalous Photocurrent Reversal Due to Hole Traps in AlGaN-Based Deep-Ultraviolet Light-Emitting Diodes

Micromachines, 2022
The trap states and defects near the active region in deep-ultraviolet (DUV) light-emitting diodes (LED) were investigated through wavelength-dependent photocurrent spectroscopy.
Seungyoung Lim, Tae-Soo Kim, Jaesang Kang, Jaesun Kim, Minhyup Song, Hyun Deok Kim, Jung-Hoon Song   +6 more
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Research Progress of AlGaN-Based Deep Ultraviolet Light-Emitting Diodes

Micromachines, 2023
AlGaN-based deep ultraviolet light-emitting diodes (DUV LEDs) have great application prospects in sterilization, UV phototherapy, biological monitoring and other aspects. Due to their advantages of energy conservation, environmental protection and easy miniaturization realization, they have garnered much interest and been widely researched.
Ruiqiang Xu, Qiushi Kang, Youwei Zhang, Xiaoli Zhang, Zihui Zhang   +4 more
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Rapid inactivation of SARS-CoV-2 with deep-UV LED irradiation

Emerging Microbes and Infections, 2020
The spread of novel coronavirus disease 2019 (COVID-19) infections worldwide has raised concerns about the prevention and control of SARS-CoV-2. Devices that rapidly inactivate viruses can reduce the chance of infection through aerosols and contact ...
Hiroko Inagaki, Akatsuki Saito, Hironobu Sugiyama, Tamaki Okabayashi, Shouichi Fujimoto   +4 more
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Extraction efficiency simulation in deep ultraviolet AlGaN light emitting diodes [PDF]

Optical and Quantum Electronics, 2021
Abstract A ray tracing model is developed to study the light extraction efficiency (LEE) of the nitride wide band gap semiconductor deep ultraviolet light emitting diodes (DUV-LEDs). The basic device structure is flip-chip LED device with dome shape encapsulation.
Qian Fan, Xianfeng Ni, Bing Hua, Xing Gu
openaire   +1 more source

A compact portable photoacoustic sensor for sub-ppm level SO2 detection with a DUV-LED and a non-resonant photoacoustic cell

Frontiers in Physics, 2023
A photoacoustic module based on a novel 273 nm deep-ultraviolet light-emitting diode (DUV-LED) was developed for sulfur dioxide (SO2) detection. The DUV-LED with an emission angle of 60° emitted a power of 10 mW.
Yujing Jing, Yujing Jing, Chaofan Feng, Chaofan Feng, Ruyue Cui, Ruyue Cui, Jiyu Xue, Jiyu Xue, Lei Dong, Lei Dong, Hongpeng Wu, Hongpeng Wu   +11 more
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