文献类型：期刊文献

中文题名：三价铈离子掺杂锗酸盐玻璃的发光性能

英文题名：LUMINESCENT PROPERTIES OF CEROUS ION-DOPED GERMANATE GLASSES

作者：贝家芳[1];钱顾杰[1];梁晓峦[1];张俊标[1];杨云霞[1];陈国荣[1]

机构：[1]华东理工大学材料科学与工程学院无机材料研究所,上海200237

年份：2006

卷号：34

期号：7

起止页码：827

中文期刊名：硅酸盐学报

外文期刊名：Journal of The Chinese Ceramic Society

收录：CSTPCD;;EI(收录号：20063810127015);Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金(50572027);上海市科委国际合作(035207015)资助项目

语种：中文

中文关键词：锗酸盐玻璃;铈掺杂;能量传递;发光性能;闪烁体

外文关键词：germanate glass; cerium-doped; energy transfer; luminescent property; scintillator

摘要：实验制备了Ce3+掺杂重金属锗酸盐玻璃样品,测试了透射、发射、激发光谱。结果表明:由于锗酸盐玻璃的光碱度较大,Ce3+的发射波长发生了明显红移。La3+的加入对Ce3+具有分散作用,有助于提高Ce3+的掺入量且降低了浓度淬灭效应。对于Ce3+和Tb3+共掺杂玻璃,Ce3+和Tb3+的发光均有所减弱,这可能是由于Ce3+,Tb3+二者在351～381nm波长处有激发峰的重叠,而存在竞争吸收所致。
Cerous ion-doped heavy-metal germinate glasses were prepared and their transmission, emission and excitation spectra were measured. The results show that the emission peak wavelength of Ce^3＋ has an obvious red-shift due to the higher optical basicity of germanate glasses. It was also found that the addition of La^3＋ disperses Ce^3＋ in the glass matrix, enhances the doping content of Ce^3＋ in the glasses and reduces the effect of concentration quenching. As for Ce^3＋ and Tb^3. co-doped glasses, the luminescence intensifies of Ce^3＋ and Tb^3＋ both decrease. This could be related to the competitive absorption between Ce3＋ and Tb^3＋ because their excita- tion peaks pile up on the wavelength of 351-381 nm.