UBIQUITOUS BLUE LUMINESCENCE FROM UNDOPED SYNTHETIC SAPPHIRES

被引：38

作者：

EVANS, BD

机构：

[1] Boeing Defense, Space Group, Seattle

来源：

JOURNAL OF LUMINESCENCE | 1994年 / 60-1卷

关键词：

D O I：

10.1016/0022-2313(94)90233-X

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Undoped, synthetic sapphires grown by four different techniques all showed an anisotropic 5.4 eV (230 nm) absorption and accompanying broad, 3.0 eV (415 nm) luminescence band. A review of the antecedent work, taken together with new spectroscopic evidence from several undoped and titanium-doped samples, treated in both oxidizing and reducing atmospheres, favor assigning these features to a charge transfer transition associated with Ti+4.

引用

页码：620 / 626

页数：7

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