The emergence and prospects of deep-ultraviolet light-emitting diode technologies

M Kneissl, TY Seong, J Han, H Amano - nature photonics, 2019 - nature.com
Abstract By alloying GaN with AlN the emission of AlGaN light-emitting diodes can be tuned
to cover almost the entire ultraviolet spectral range (210–400 nm), making ultraviolet light …

[HTML][HTML] Perspectives on UVC LED: Its progress and application

TC Hsu, YT Teng, YW Yeh, X Fan, KH Chu, SH Lin… - Photonics, 2021 - mdpi.com
High-quality epitaxial layers are directly related to internal quantum efficiency. The methods
used to design such epitaxial layers are reviewed in this article. The ultraviolet C (UVC) light …

[PDF][PDF] Graphene-based LED: From principle to devices

Z Chen, P Gao, Z Liu - Acta Phys.-Chim. Sin, 2020 - whxb.pku.edu.cn
Group-III nitride (III-N) films have numerous applications in LEDs, lasers, and high-
power/high-frequency electronic devices because of their direct wide band gap, high …

III–nitride UV devices

MA Khan, M Shatalov, HP Maruska… - Japanese journal of …, 2005 - iopscience.iop.org
The need for efficient, compact and robust solid-state UV optical sources and sensors had
stimulated the development of optical devices based on III–nitride material system. Rapid …

Unique optical properties of AlGaN alloys and related ultraviolet emitters

KB Nam, J Li, ML Nakarmi, JY Lin, HX Jiang - Applied physics letters, 2004 - pubs.aip.org
Deep UV photoluminescence spectroscopy has been employed to study the optical
properties of Al x Ga 1− x N alloys (0⩽ x⩽ 1)⁠. The emission intensity with polarization of …

Quaternary InAlGaN-based high-efficiency ultraviolet light-emitting diodes

H Hirayama - Journal of Applied Physics, 2005 - pubs.aip.org
In order to realize 250–350-nm-band high-efficiency deep ultraviolet (UV) emitting devices
using group-III-nitride materials, it is necessary to obtain high-efficiency UV emission from …

[HTML][HTML] 新型石墨烯基LED 器件: 从生长机理到器件特性

陈召龙, 高鹏, 刘忠范 - 物理化学学报, 2019 - whxb.pku.edu.cn
Ⅲ 族氮化物因具有禁带宽度大, 击穿电压高, 电子饱和漂移速度大, 稳定性高等优异特性而广泛
应用在发光二极管(LED), 激光器以及高频器件中. 目前Ⅲ 族氮化物薄膜通常是异质外延生长在 …

Effect of crystal-field split-off hole and heavy-hole bands crossover on gain characteristics of high Al-content AlGaN quantum well lasers

J Zhang, H Zhao, N Tansu - Applied Physics Letters, 2010 - pubs.aip.org
The optical gain characteristics of high Al-content AlGaN quantum wells (QWs) are analyzed
for deep UV lasers. The effect of crystal-field split-off hole (CH) and heavy-hole (HH) bands …

200nm deep ultraviolet photodetectors based on AlN

J Li, ZY Fan, R Dahal, ML Nakarmi, JY Lin… - Applied Physics …, 2006 - pubs.aip.org
High quality AlN epilayers were grown on sapphire substrates by metal organic vapor
deposition and exploited as active deep ultraviolet (DUV) optoelectronic materials through …

250nmAlGaN light-emitting diodes

V Adivarahan, WH Sun, A Chitnis, M Shatalov… - Applied physics …, 2004 - pubs.aip.org
We report AlGaN deep ultraviolet light-emitting diodes (LEDs) at 250 and 255 nm that have
short emission wavelengths. For an unpackaged 200× 200 μ m square geometry LED …