PHOTOLUMINESCENCE DUE TO LATTICE-MISMATCH DEFECTS IN HIGH-PURITY ZNSE LAYERS GROWN BY METALORGANIC VAPOR-PHASE EPITAXY

被引:19
作者
SHIBATA, N [1 ]
OHKI, A [1 ]
ZEMBUTSU, S [1 ]
KATSUI, A [1 ]
机构
[1] NIPPON TELEGRAPH & TEL CORP,OPTOELECTR LABS,TOKAI,IBARAKI 31911,JAPAN
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1988年 / 27卷 / 03期
关键词
PHOTOLUMINESCENCE - SEMICONDUCTING FILMS - Growth - SEMICONDUCTOR MATERIALS - Impurities;
D O I
10.1143/JJAP.27.L441
中图分类号
O59 [应用物理学];
学科分类号
摘要
High-purity ZnSe layers grown by metalorganic vapor phase epitaxy exhibit an unusually strong luminescence band at 2. 60 eV (Y band), which is extremely sensitive to residual impurity concentration. Y emission depends on the lattice mismatch between the epilayer and substrate. The emission decreases with the use of a lattice-matched In//xGa//1// minus //xAs substrate. With the GaAs substrate, the emission intensity varies with layer thickness reflecting lattice relaxation in the ZnSe/GaAs structure.
引用
收藏
页码:L441 / L443
页数:3
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