UNIFIED DESCRIPTION OF CU-RELATED LUMINESCENCE PROCESSES IN II-VI SEMICONDUCTORS

被引:25
作者
PEKA, P
SCHULZ, HJ
机构
[1] Fritz-Haber-Institut der MPG, Faradayweg 4-6
关键词
D O I
10.1016/0038-1098(94)90687-4
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
An empirical model of t(2)- and e-type one-electron levels is constructed. compatible with the energy-band scheme of the host material. A great variety of optical processes involving the charge states A(0)(Cu2+) and A(-)(Cu+) of the copper acceptor can thus be described, including several previously unrelated effects. Bound-exciton formation and annihilation are demonstrated to play an important role in various absorption and emission transitions. Alignment of the t(2) Cu level for ZnS and CdS leads to an evaluation of band discontinuities For these semiconductors.
引用
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页码:225 / 228
页数:4
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