OPTICAL-PROPERTIES OF LATTICE-DEFECTS IN ALPHA-AL2O3

被引：172

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

页码：258 / 262

页数：5

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