Eu^(3+)掺杂硼酸盐玻璃的光谱性质研究  

The Spectroscopic Properties of Eu^(3+)-doped Borate Glasses

作　　者：许思超[1] 张约品[1] 夏海平[1] 

机构地区：[1]宁波大学光电子功能材料研究所,浙江宁波315211

出　　处：《宁波大学学报（理工版）》2006年第4期509-512,共4页Journal of Ningbo University：Natural Science and Engineering Edition

基　　金：浙江省自然科学基金(502164);宁波市博士基金(2005A610023;2005A610010);浙江省教育厅科研基金(20051747);浙江省高校青年教师资助计划(2004921)

摘　　要：测试了不同浓度掺杂下Eu3+离子在硼酸盐玻璃的吸收光谱、激发光谱与发射光谱,根据荧光光谱计算了各样品的强度参数Ω2与Ω4,分析了Eu3+离子掺杂浓度对其发光强度的影响.研究结果表明:在Eu3+离子高掺杂浓度时,会发生浓度猝灭效应,但由于Eu3+激活离子之间能量传递几率很小,使得Eu3+离子猝灭浓度较高。The absorption, excitation and emission spectra were measured with different concentrations of Eu^3＋-doped in borate glasses. The Ω2 and Ω24 parameters of Eu^3＋ for optical transition were calculated from their emission spectra in terms of reduced matrix ~t）（ t = 2,4,6 ） character for optical transitions. Degree of dependence of luminescence intensity on concentration of Eu^3＋was analyzed. The results indicate that the concentration quenching occur when high level Eu3＋ is doped. The critical quenching concentration of Eu^3＋ is higher than other rare earth ions because the probability of the energy transfer between the corresponding activation ions is very small.

关 键 词：EU^3+离子 硼酸盐玻璃 光谱性质 

分 类 号：TQ171[化学工程—玻璃工业]