標題: Density-dependent energy relaxation of hot electrons in InN epilayers
作者: Yang, M. D.
Liu, Y. W.
Shen, J. L.
Chen, C. W.
Chi, G. C.
Lin, T. Y.
Chou, W. C.
Lo, M. H.
Kuo, H. C.
Lu, T. C.
電子物理學系
光電工程學系
Department of Electrophysics
Department of Photonics
公開日期: 1-Jan-2009
摘要: This work investigates the dependence of the hot-electron energy relaxation in InN epilayers on electron density. From the high-energy tail of photoluminescence, the electron temperature of the hot electrons was determined. Acoustic phonons have an important role in the energy relaxation of the hot electrons. The density-dependent electron energy loss rate in InN can be explained by a combination of longitudinal optical and acoustic phonon emissions. A slowing of energy loss rate at high electron densities was observed and attributed to piezoelectric coupling to acoustic phonons. (C) 2009 American Institute of Physics. [DOI: 10.1063/1.3056383]
URI: http://dx.doi.org/10.1063/1.3056383
http://hdl.handle.net/11536/7927
ISSN: 0021-8979
DOI: 10.1063/1.3056383
期刊: JOURNAL OF APPLIED PHYSICS
Volume: 105
Issue: 1
結束頁: 
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