Ultraviolet Lasers Realized via Electrostatic Doping Method

作者：X. Y. Liu, C. X. Shan, Hai Zhu, Bohong Li, Mingming Jiang, S. F. Yu, Dazhong Shen · 发表于：Scientific Reports · 年份：2015 · DOI：10.1038/srep13641 · 被引用次数：20 · 研究领域：GaN-based semiconductor devices and materials、Semiconductor Quantum Structures and Devices、ZnO doping and properties

P-type doping of wide-bandgap semiconductors has long been a challenging issue for the relatively large activation energy and strong compensation of acceptor states in these materials, which hinders their applications in ultraviolet (UV) optoelectronic devices drastically. Here we show that by employing electrostatic doping method, hole-dominant region can be formed in wide bandgap semiconductors, and UV lasing has been achieved through the external injection of electrons into the hole-dominant region, confirming the applicability of the p-type wide bandgap semiconductors realized via the electrostatic doping method in optoelectronic devices.