Temperature dependence of the energies and broadening parameters of the excitonic interband transitions in Ga0.95Al0.05N

被引:17
作者
Malikova, L
Huang, YS
Pollak, FH
Feng, ZC
Schurman, M
Stall, RA
机构
[1] CUNY BROOKLYN COLL, NEW YORK STATE CTR ADV TECHNOL ULTRAFAST PHOTON M, BROOKLYN, NY 11210 USA
[2] EMCORE CORP, SOMERSET, NJ 08873 USA
[3] NATL TAIWAN INST TECHNOL, DEPT ELECT ENGN, TAIPEI 10772, TAIWAN
[4] CUNY GRAD SCH & UNIV CTR, NEW YORK, NY 10036 USA
基金
美国国家科学基金会;
关键词
D O I
10.1016/S0038-1098(97)00160-9
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
We have measured the temperature dependence of the A, B and C excitonic transitions associated with the direct gap of wurtzite Ga0.95Al0.05N in the temperature range 16 K < T < 434 K using contactless electroreflectance. The parameters that describe the temperature variation of both the energies and broadening functions of the band gaps have been evaluated. The exiton-LO phonon coupling constant has been determined from an analysis of the latter quantities. (C) 1997 Published by Elsevier Science Ltd.
引用
收藏
页码:273 / 278
页数:6
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