Effects of strain, substrate misorientation, and excitonic transition on the optical polarization of ordered zinc-blende semiconductor alloys
作者:
Yong Zhang,
A. Mascarenhas,
P. Ernst,
F. A. J. M. Driessen,
D. J. Friedman,
K. A. Bertness,
J. M. Olson,
C. Geng,
F. Scholz,
H. Schweizer,
期刊:
Journal of Applied Physics
(AIP Available online 1997)
卷期:
Volume 81,
issue 9
页码: 6365-6373
ISSN:0021-8979
年代: 1997
DOI:10.1063/1.364390
出版商: AIP
数据来源: AIP
摘要:
Optical polarization in orderedGaInP2alloys has been studied by low-temperature photoluminescence. A perturbative theory that includes the effects of lattice mismatch, substrate misorientation, and excitonic transitions has been developed for making quantitative comparisons between experimental results and theoretical predictions. We show that to obtain quantitative information about ordering from the polarization of near-band-gap transitions, all of the above-mentioned effects should be taken into account. This study demonstrates that the electronic and optical properties of a monolayer superlattice formed by partial ordering in theGaInP2alloy can be well described by a simple perturbative Hamiltonian, i.e., a quasicubic model. ©1997 American Institute of Physics.
点击下载:
PDF
(244KB)
返 回