Low-threshold electrically pumped random lasers

Hai Zhu, Chong Xin Shan, Ji Ying Zhang, Zhen Zhong Zhang, Bing Hul Li, Dong Xu Zhao, Bin Yao, De Zhen Shen, Xi Wu Fan, Zi Kang Tang, Xlanghui Hou, Kwang Leong Choy

Research output: Contribution to journalArticlepeer-review

136 Scopus citations

Abstract

Electrically pumped random lasers are realized in ZnO nanocrystallite films in a simple metal-oxide-semiconductor structure. By introducing an i-ZnO layer, a threshold current of 6.5 mA is obtained. The reported results provide a simple route to electrically pumped random lasing (see figure) with relatively low threshold, a significant step towards the future applications of this kind of laser. (Fig. Represented)

Original languageEnglish
Pages (from-to)1877-1881
Number of pages5
JournalAdvanced Materials
Volume22
Issue number16
DOIs
StatePublished - 22 Apr 2010
Externally publishedYes

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