无机材料学报Issue(8)：859-863,5.DOI:10.15541/jim20130604
Bi2O3-SiO2玻璃及玻璃陶瓷近红外发光性能的研究
Near-infrared Luminescence Properties of Bi2O3-SiO2 Glasses and Glass Ceramics
摘要
Abstract
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-SiO2 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 maxi-mum (FWHM) about 200 nm is observed. With the increase of Bi2O3 content, another peak at about 1070 nm with narrow FWHM appears and becomes the main peak, while the FWHM of the NIR emission centered at 1336 nm (or 1300 nm) decreases to only tens of nanometer. Two emission bands have different excitation bands and lifetime. We propose NIR emissions located at 1070 nm and 1336 nm (or 1300 nm) originate from different bismuth centers. The infrared emission peaked at about 1336 nm (or 1300 nm) derives from low valence Bi ions.关键词
近红外发光/Bi离子/玻璃陶瓷Key words
near infrared emission/Bi ions/glass ceramics分类
通用工业技术引用本文复制引用
刘军芳,苏良碧,徐军..Bi2O3-SiO2玻璃及玻璃陶瓷近红外发光性能的研究[J].无机材料学报,2014,(8):859-863,5.基金项目
国家自然科学基金(61008045),中央高校基本科研业务费专项基金National Natural Science Foundation of China (61008045) （61008045）
Fundamental Research Funds for the Central Universities （）
