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Er,Yb:YAG微晶玻璃发光特性的研究
引用本文:张约品,夏海平,张新民,王金浩,章践立,姜淳.Er,Yb:YAG微晶玻璃发光特性的研究[J].物理学报,2007,56(7):4207-4212.
作者姓名:张约品  夏海平  张新民  王金浩  章践立  姜淳
作者单位:(1)宁波大学光电子功能材料研究所,宁波 315211; (2)上海交通大学电子信息学院,上海 200030
基金项目:浙江省自然科学基金;浙江省宁波市博士科研项目;浙江省教育厅资助项目
摘    要:高温熔制Er3+,Yb3+离子掺杂CaO-Y2O3-Al2O3-SiO2系统玻璃,并进行微晶化处理,研究了微晶玻璃中Er3+离子的发光及上转换发光特性,分析了微晶玻璃上转换发光机理.结果表明:原始玻璃经热处理得到了Er,Yb:YAG微晶玻璃,微晶玻璃中Er3+离子在室温下4I13/24I15/2跃迁产生横盖1450—1650nm区间的超宽带荧光,荧光半高宽达180nm,这可能由于YAG微晶相中Er3+离子与玻璃相中残留Er3+离子的共同发光;Er3+与Yb3+离子局域基质声子能量的降低使微晶玻璃Er3+离子上转换发光强度与原始玻璃相比显著提高,绿光、红光上转换荧光强度比玻璃样品分别增强约7和3倍;微晶化后Er3+,Yb3+离子局域环境发生变化也导致微晶玻璃中Er3+离子绿光、红光上转换发光相对强度发生变化. 关键词: 铒 镱:钇铝石榴石 微晶玻璃 荧光光谱

关 键 词:  镱:钇铝石榴石  微晶玻璃  荧光光谱
文章编号:1000-3290/2007/56(07)/4207-06
收稿时间:2006-11-07
修稿时间:2006-11-07

Fluorescence of Er, Yb: YAG glass-ceramics
Zhang Yue-Pin,Xia Hai-Ping,Zhang Xin-Min,Wang Jin-Hao,Zhang Jian-Li,Jiang Chun.Fluorescence of Er, Yb: YAG glass-ceramics[J].Acta Physica Sinica,2007,56(7):4207-4212.
Authors:Zhang Yue-Pin  Xia Hai-Ping  Zhang Xin-Min  Wang Jin-Hao  Zhang Jian-Li  Jiang Chun
Institution:Laboratory of Photo-Electronic Material , Ningbo Urdversity , Ningbo 315211,China;Department of Electronic Science and Technology, Shanghai Jiaotong University, Shanghai 200030, China
Abstract:The Er3+, Yb3+-doped CaO-Y2O3-Al2O3-SiO2 glasses were prepared by melting, and then annealed. The emission spectra and upconversion spectra of glass-ceramics have been investigated. The upconversion luminescence mechanisms of Er3+ in YAG glass-ceramics were analyzed. The results show that the Er,Yb:YAG glass-ceramics are obtained after annealing of the glasses. A broad emission spectrum of width 200nm in the wavelength range of 1450—1650nm was obtained in Er,Yb:YAG glass-ceramics at room temperature. The full width at half-maximum (FWHM) of the 4I13/24I15/2 transition is ~180nm. This may be as a result of the luminescence of the Er3+ ions in YAG crystal phase and the remnant Er3+ ions in glass phase acting together. The upconversion luminescence intensity increases because the phonon energy of YAG crystallite is lower than that of aluminosilicate glass. The infrared to green or to red upconversion luminescence intensities for the glass-ceramics are evaluated to be nearly 7 or 3 times as high as that of aluminosilicate glasses, respectively. The relative intensities of green and red upconversion emission changed because the microscopic environment around Er3+ and Yb3+ ions changed upon heat treatment.
Keywords:Er  Yb:YAG  glass-ceramics  fluorescence spectra
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