Luminescence characteristics of Te- and Bi-doped glasses and glass-ceramics

被引：120

作者：

Khonthon, Sasithorn

Morimoto, Shigeki

Arai, Yusuke

Ohishi, Yasutake

机构：

[1] Suranaree Univ Technol, Sch Ceram Engn, Nakhon Ratchasima 30000, Thailand

[2] Toyota Technol Inst, Dept Future Oriented Basci Sci & Mat, Tempaku Ku, Nagoya, Aichi 4688511, Japan

来源：

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN | 2007年 / 115卷 / 1340期

关键词：

tellurium; bismuth; clustering; transparent glass-ceramics; absorption spectra; NIR luminescence; ESR;

D O I：

10.2109/jcersj.115.259

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The luminescence characteristics of Te- and Bi-doped glasses and glass-ceramics were investigated and the origin of coloration and near infrared luminescence was discussed. The colorations of these glasses and glass-ceramics might be due to the elemental clustering, such as Te-2/Te2- and Bi-2/Bi2-. The broad near infrared (NIR) luminescence can be detected in Te- and Bi-doped glasses and glass-ceramics. The electron spin resonance (ESR) signal at g approximate to 2.0 was observed in Te- and Bi-doped glasses and glass-ceramics, which exhibit NIR luminescence, and therefore this ESR signal is strongly related to the NIR luminescence. The ESR signal at g 2.0 might be derived from molecular ions of Te and Bi, Te-2(-) and Bi-2(-). Consequently, it is suggested that the broad NIR luminescence of Te- and Bi-doped glass and glass-ceramics are most likely to be caused by elemental clustering, such as Te-2/Te2- and Bi-2/Bi2-.

引用

页码：259 / 263

页数：5

共 27 条

[1] MEASUREMENTS OF TI3+-AL2O3 AS A LASING MATERIAL [J].