Persistent photoconductivity inn-type GaN
作者:
G. Beadie,
W. S. Rabinovich,
A. E. Wickenden,
D. D. Koleske,
S. C. Binari,
J. A. Freitas,
期刊:
Applied Physics Letters
(AIP Available online 1997)
卷期:
Volume 71,
issue 8
页码: 1092-1094
ISSN:0003-6951
年代: 1997
DOI:10.1063/1.119924
出版商: AIP
数据来源: AIP
摘要:
Persistent photoconductivity has been observed inn-type GaN:Si. The effect is seen at room temperature in both nonoptimally grown films as well as in device quality channel layers. The relaxation dynamics are found to agree with a stretched exponential model of recovery. A comparison between different samples, based upon stretched exponential parameters, Hall measurements, and photoluminescence data is made. The data suggest that the cause of persistent photoconductivity is the same among the different samples and that there is a transition in the relaxation dynamics between room temperature and 130 °C. ©1997 American Institute of Physics.
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