OPTICAL-PROPERTIES OF LATTICE-DEFECTS IN ALPHA-AL2O3

被引：170
作者：
EVANS, BD
POGATSHNIK, GJ
CHEN, Y
机构：
[1] OAK RIDGE NATL LAB,DIV SOLID STATE,OAK RIDGE,TN 37831
[2] SO ILLINOIS UNIV,DEPT PHYS,EDWARDSVILLE,IL 62026
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1994年 / 91卷 / 1-4期
关键词：
D O I：
10.1016/0168-583X(94)96227-8
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Experimental optical properties of lattice vacancy defects in single crystal alpha-Al2O3 are reviewed. Specific ultraviolet absorption and luminescence bands are associated with F-type centers. Following extended exposures to epithermal neutron sources, photobleaching and anisotropic properties allowed the association of several of.the visible and near infrared bands with F2-type centers. Photoconductivity, photostability and charge state considerations provided tentative placement of defect energy levels with respect to the conduction band edge.
引用
收藏
页码：258 / 262
页数：5
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