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

Rong, Xin; Wang, Xinqiang; Ivanov, Sergey V; Jiang, Xinhe; Chen, Guang; Wang, Ping; Wang, Weiying; He, Chenguang et al. · Adv Mater · 2016

basic_science · Level V

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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.