EXCITON SPECTROSCOPY IN ZN1-XCDXSE/ZNSE QUANTUM-WELLS

被引:104
作者
CINGOLANI, R
PRETE, P
GRECO, D
GIUGNO, PV
LOMASCOLO, M
RINALDI, R
CALCAGNILE, L
VANZETTI, L
SORBA, L
FRANCIOSI, A
机构
[1] CNR,IST ICMAT,MONTELBRIETTI,ITALY
[2] UNIV MINNESOTA,DEPT CHEM ENGN & MAT SCI,MINNEAPOLIS,MN 55455
[3] UNIV TRIESTE,DIPARTIMENTO FIS,TRIESTE,ITALY
[4] IST NAZL FIS MAT,TECNOL AVANZATE SUPERFICI & CATALISI LAB,AREA RIC,TRIESTE,ITALY
来源
PHYSICAL REVIEW B | 1995年 / 51卷 / 08期
关键词
D O I
10.1103/PhysRevB.51.5176
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Systematic temperature-dependent studies of optical absorption and photoluminescence in Zn1-xCdxSe/ZnSe strained-layer multiple-quantum-well samples grown by molecular-beam epitaxy were used to evaluate the well-width dependence and the composition dependence of the major excitonic properties. Exciton binding energies calculated by means of a variational method were found in good agreement with the experimental values obtained from the analysis of the absorption line shapes. The well-width dependence of the excitonic eigenstates were well reproduced by envelope-function calculations that included the effect of pseudomorphic strain. © 1995 The American Physical Society.
引用
收藏
页码:5176 / 5183
页数:8
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