Results 1 to 10 of about 862 (171)

Rapid Inactivation of SARS-CoV-2 Variants by Continuous and Intermittent Irradiation with a Deep-Ultraviolet Light-Emitting Diode (DUV-LED) Device [PDF]

Pathogens, 2021
More than 1 year has passed since social activities have been restricted due to the spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).
Hiroko Inagaki, Akatsuki Saito, Chiho Kaneko, Hironobu Sugiyama, Tamaki Okabayashi, Shouichi Fujimoto   +5 more
doaj   +5 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   +3 more sources

Recent advances in polymeric chemically amplified positive resists: Materials and design strategies. [PDF]

Smart Mol
This review summarizes recent advances in the molecular design of positive chemically amplified resists, focusing on photoacid generators and polymer architectures. Key strategies for enhancing sensitivity—including self‐amplification effects, copolymerization of sensitive monomers, controlled polymerization, and photosensitized chemically amplified ...
Zhou L, Li H, Zhang J, Xin H.
europepmc   +2 more sources

Maximizing the Light Extraction Efficiency for AlGaN-Based DUV-LEDs with Two Optimally Designed Surface Structures under the Guidance of PSO

Crystals, 2022
A novel method of utilizing an intelligent algorithm to guide the light extraction surface structure designing process for deep-ultraviolet light emitting diodes (DUV-LEDs) is proposed and investigated.
Zizheng Li, Huimin Lu, Jianping Wang, Yifan Zhu, Tongjun Yu, Yucheng Tian   +5 more
doaj   +3 more sources

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
doaj   +2 more sources

Power Enhancement of 265 nm DUV-LED Flip-Chip by HVPE-AlN High-Temperature Annealing [PDF]

Micromachines, 2023
Wenkai Yue
exaly   +2 more sources

Deep-ultraviolet Fourier ptychography (DUV-FP) for label-free biochemical imaging via feature-domain optimization [PDF]

APL Photonics
We present deep-ultraviolet Fourier ptychography (DUV-FP) for high-resolution chemical imaging of biological specimens in their native state without exogenous stains.
Qianhao Zhao, Ruihai Wang, Shuhe Zhang, Tianbo Wang, Pengming Song, Guoan Zheng   +5 more
doaj   +2 more sources

DUV LEDs based on AlGaN quantum dots [PDF]

Gallium Nitride Materials and Devices XVI, 2021
Deep ultraviolet (DUV) light emitting diodes (LED) are expected to be the next generation of UV sources, offering significant advantages such as compactness, low consumption and long lifetimes. Yet, improvements of their performances are still required and the potential of AlyGa1-yN quantum dots as DUV emitters is investigated in this study.
Julien Brault, Mohamed Al Khalfioui, Mathieu Leroux, Samuel Matta, Thi-Huong Ngo, Aly Zaiter, Aimeric Courville, Benjamin Damilano, Sébastien Chenot, Jean-Yves Duboz, Jean Massies, Pierre Valvin, Bernard Gil   +12 more
openaire   +1 more source

A scattered volume emitter micropixel architecture for ultra efficient light extraction from DUV LEDs

Scientific Reports
Deep ultraviolet light-emitting diodes (DUV LEDs) typically suffer from strong parasitic absorption in the p-epitaxial layer and rear metal contact/mirror.
Faris Azim Ahmad Fajri, Anjan Mukherjee, Suraj Naskar, Ahmad Fakhrurrazi Ahmad Noorden, Aimi Abass   +4 more
doaj   +4 more sources

Greatly Enhanced Wall-Plug Efficiency of N-polar AlGaN-Based Deep Ultraviolet Light-Emitting Diodes

IEEE Photonics Journal, 2021
In this work, we numerically investigate the N-polar AlGaN-based deep ultraviolet light-emitting diodes (DUV LEDs) over the Ga-polar DUV LEDs. The light output power has increased from 7.1 mW of Ga-polar DUV LED to 18.8 mW of N-polar DUV LED at 60 mA ...
Hongchang Tao, Shengrui Xu, Xiaomeng Fan, Jincheng Zhang, Yue Hao   +4 more
doaj   +1 more source