Piezophototronic-Effect-Enhanced Electrically Pumped Lasing.

Yang, Xun; Dong, Lin; Shan, Chongxin; Sun, Junlu; Zhang, Nan; Wang, Shuangpeng; Jiang, Mingming; Li, Binghui et al. · Adv Mater · 2017

basic_science · Level V

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Abstract

This study demonstrates significant improvements of ZnO nanowire lasers by the piezophototronic effect. The laser output power can be enhanced by a factor of 4.96, and the threshold voltage can be decreased from 48 to 20 V by applying pressure. The mechanism of the improved performance can be attributed to the enhanced carrier injection and recombination due to the piezophototronic effect.