Piezophototronic-Effect-Enhanced Electrically Pumped Lasing

Xun Yang; Lin Dong; Chongxin Shan; Junlu Sun; Nan Zhang; Shuangpeng Wang; Mingming Jiang; Binghui Li; Xiuhua Xie; Dezhen Shen

doi:10.1002/adma.201602832

Piezophototronic-Effect-Enhanced Electrically Pumped Lasing

Adv Mater. 2017 Feb;29(5). doi: 10.1002/adma.201602832. Epub 2016 Nov 22.

Authors

Xun Yang^{1

2

3}, Lin Dong¹, Chongxin Shan^{1

2}, Junlu Sun¹, Nan Zhang³, Shuangpeng Wang², Mingming Jiang², Binghui Li², Xiuhua Xie², Dezhen Shen²

Affiliations

¹ School of Physics and Engineering, Zhengzhou University, Zhengzhou, 450001, China.
² State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, 130033, China.
³ Chinese Academy of Sciences, Beijing, 100049, China.

PMID: 27874222
DOI: 10.1002/adma.201602832

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.

Keywords: ZnO nanowires; lasers; piezophototronic effect; thresholds.