Well-aligned ZnO nanowires have been prepared on sapphire substrate, and structural and optical characterizations indicate that the nanowires are of single crystalline and have relatively high luminescent quality. By employing the ZnO nanowires as an active layer, nanowire heterostructure light-emitting devices (LEDs) have been fabricated. The LEDs show pure ultraviolet emission when a forward bias is applied, while the deep-level emission frequently observed in ZnO junctions is almost totally invisible. The devices can work continuously for over 27 h under the injection of a current density of , indicating their good stability.
© 2014 Optical Society of AmericaFull Article | PDF Article
Rui Huang, Shuigang Xu, Xiang Wang, Wenhao Guo, Chao Song, Jie Song, Kin Ming Ho, Shengwang Du, and Ning Wang
Opt. Lett. 37(2) 211-213 (2012)
Ji-Shan Liu, Chong-Xin Shan, Bing-Hui Li, Zhen-Zhong Zhang, Ke-Wei Liu, and De-Zhen Shen
Opt. Lett. 38(12) 2113-2115 (2013)
Hao Long, Songzhan Li, Xiaoming Mo, Haoning Wang, Zhao Chen, Zhe Chuan Feng, and Guojia Fang
Opt. Express 22(S3) A833-A841 (2014)