1. High external quantum efficiency (10%) AlGaN-based deep-ultraviolet light-emitting diodes achieved by using highly reflective photonic crystal on p-AlGaN contact layer. (30th November 2017) Authors: Kashima, Yukio; Maeda, Noritoshi; Matsuura, Eriko; Jo, Masafumi; Iwai, Takeshi; Morita, Toshiro; Kokubo, Mitsunori; Tashiro, Takaharu; Kamimura, Ryuichiro; Osada, Yamato; Takagi, Hideki; Hirayama, Hideki Journal: Applied physics express Issue: Volume 11:Number 1(2018) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗