Near-infrared Luminescence Properties of Bi2O3-SiO2 Glasses and Glass Ceramics

被引：0

作者：

Liu Jun-Fang ^{[1
]}

Su Liang-Bi ^{[2
]}

Xu Jun ^{[2
]}

机构：

[1] Tongji Univ, Sch Mat Sci & Engn, Shanghai 201804, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Transparent & Optofunct Inorgan Mat, Shanghai 201800, Peoples R China

来源：

JOURNAL OF INORGANIC MATERIALS | 2014年 / 29卷 / 08期

基金：

中国国家自然科学基金;

关键词：

near infrared emission; Bi ions; glass ceramics; BISMUTH; ORIGIN; EMISSION; ORANGE; RED;

D O I：

暂无

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：

Bi2O3-SiO2 glasses and glass ceramics were prepared by melting method. Infrared and VIS luminescence spectra, excitation spectra and fluorescence decay curves were measured. Near infrared (NIR) luminescence of Bi2O3-SiO(2)glasses and glass ceramics was observed under 808 nm Laser Diode pumping. When the content of Bi2O3 is low (30mol%, 40mol%, 50mol%), NIR luminescence peak at 1336 nm (or 1300 nm) with full width at half maximum (FWHM) about 200 mu is observed. With the increase of Bi2O3 content, another peak at about 1070 urn with narrow FWHM appears and becomes the main peak, while the FWHM of the NIB, emission centered at 1336 nm (or 1300 urn) decreases to only tens of nanometer. Two emission bands have different excitation bands and lifetime. We propose NIR emissions located at 1070 mu and 1336 urn (or 1300 urn) originate from different bismuth centers. The infrared emission peaked at about 1336 urn (or 1300 nm) derives from low valence Bi ions.

引用

页码：859 / 863

页数：5

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