Electrically Pumped Ultraviolet Random Lasing from p-ZnO:As Based on p-ZnO/N-GaN Heterojunction.

Autor: Yuan-Tao Zhang, Xiao-Chuan Xia, Bin Wu, Zhi-Feng Shi, Fan Yang, Xiao-Tian Yang, Bao-Lin Zhang, Guo-Tong Du
Předmět:
Zdroj: Chinese Physics Letters; May2014, Vol. 31 Issue 5, p1-1, 1p
Abstrakt: p-ZnO:As is prepared by the GaAs interlayer doping method. The potential applications of p-ZnO:As are evaluated by applying it into the construction of a p-ZnO/n-GaN heterojunction, though its hall, electrochemical capacitance-voltage and photoluminescence results show a hole concentration at the level of ∼1017 cm−3 and a good optical quality. Ultraviolet random lasing is detected from the studied device under forward bias. Specific lasing modes are confirmed to originate from p-ZnO:As by further introducing the p-ZnO/MgO/n-GaN heterostructure. The resulting random lasing phenomena demonstrate the promising prospects in device application of p-ZnO:As fabricated by using our methods. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index