SURFACE EXCITONS IN ZNO CRYSTALS

被引：96
|
作者：
TRAVNIKOV, VV [1 ]
FREIBERG, A [1 ]
SAVIKHIN, SF [1 ]
机构：
[1] ACAD SCI ESSSR,INST PHYS,TARTU 202400,ESTONIA,USSR
来源：
JOURNAL OF LUMINESCENCE | 1990年 / 47卷 / 03期
关键词：
D O I：
10.1016/0022-2313(90)90006-W
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The exciton luminescence of ZnO monocrystals at liquid helium temperature with a picosecond time resolution has been studied. It is shown that the major part of the edge luminescence of ZnO is due to the excitons bound by surface centres. This surface-bound exciton proved to have an unusually short (60 ps) decay time. The Auger process and the radiative recombination are discussed as a possible decay mechanism of these excitons. © 1990.
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页码：107 / 112
页数：6
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