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Adv Mater. 2016 Sep;28(36):7978-7983. doi: 10.1002/adma.201600990. Epub 2016 Jul 6.

High-Output-Power Ultraviolet Light Source from Quasi-2D GaN Quantum Structure.

Author information

1
State Key Laboratory of Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing, 100871, P. R. China.
2
State Key Laboratory of Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing, 100871, P. R. China. wangshi@pku.edu.cn.
3
Collaborative Innovation Center of Quantum Matter, Beijing, 100871, P. R. China. wangshi@pku.edu.cn.
4
Ioffe Institute, Polytekhnicheskaya 26, St. Petersburg, 194021, Russia.
5
Leibniz Institute for Crystal Growth, Berlin, 12489, Germany.
6
Lebedev Physical Institute, Russian Academy of Sciences, Leninsky pr. 53, Moscow, 119991, Russia.
7
National Research Nuclear University MEPhI, Kashirskoye shosse 31, Moscow, 115409, Russia.
8
Key Laboratory of Semiconductor Materials Science and Beijing Key Laboratory of Low-dimensional Semiconductor Materials and Devices, Institute of Semiconductors, CAS, Beijing, 100083, P. R. China.
9
State Key Laboratory of Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing, 100871, P. R. China. bshen@pku.edu.cn.
10
Collaborative Innovation Center of Quantum Matter, Beijing, 100871, P. R. China. bshen@pku.edu.cn.

Abstract

Quasi-2D GaN layers inserted in an AlGaN matrix are proposed as a novel active region to develop a high-output-power UV light source. Such a structure is successfully achieved by precise control in molecular beam epitaxy and shows an amazing output power of ≈160 mW at 285 nm with a pulsed electron-beam excitation. This device is promising and competitive in non-line-of-sight communications or the sterilization field.

KEYWORDS:

e-beam pumping; high output power; mid-UV light sources; molecular beam epitaxy; quasi-2D GaN

PMID:
27383739
DOI:
10.1002/adma.201600990

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