CaO-B_2O_3-SiO_2:Eu^(2+)玻璃的合成及荧光光谱分析研究  

Study on the Synthesis and Luminescent Properties Analysis of CaO-SiO_2-B_2O_3:Eu^(2+) Glasses

作　　者：熊晓甦 石鹏途 陈红军 刘惠言 成益民 

机构地区：[1]湖南省产商品质量监督检验所,长沙市新建西路41号410007

出　　处：《光谱实验室》2009年第3期594-598,共5页Chinese Journal of Spectroscopy Laboratory

基　　金：湖南省自然科学基金资助项目(02JJY2020)

摘　　要：在还原气氛中合成了CaO-B2O3-SiO2:Eu2+玻璃体系,研究了该玻璃体系中Eu2+的激发光谱和发射光谱,并归属了其相应的跃迁发射。研究了掺杂Eu2+浓度对其发光强度的影响,结果表明,Eu2+掺杂量在0.20%时发光强度达到最大值,在该玻璃体系中没有观察到浓度猝灭现象。研究了合成条件与Eu离子在玻璃中发光性质的关系,说明还原能力H2>CO>空气,空气几乎不具备还原能力。研究了玻璃中Eu2+的电子自旋共振谱(ESR)性质,证实了玻璃体系中Eu2+的存在,得到了玻璃体系中Eu2+的能级图。CaO-B2O3-SiO2： Eu^2＋ glasses were synthesized in the reduction deoxidized atmosphere. The excitation and emission spectra of Eu^2＋ ion in the CaO-BzO3-SiO2：Eu^2＋ glasses and their corresponding transition emissions were studied. The influence of Eu^2＋ concentration in the glasses on the luminescence intensity shows that the luminescence intensity reaches its maximum when Eu^2＋ concentration reaches 0. 20% and no concentration quenching is observed in the glasses. The relationship between the conditions of synthesis and the luminescence properties of Eu ion in the glasses shows that H2 is more able to deoxidize than CO and CO is more able to deoxidize than air. Air is virtually unable to deoxidize. The ESR properties of Eu^2＋ in the glasses proves the existence of Eu^2＋ ion in the glasses and a figure of energy level of Eu^2＋ in the glasses is formed.

关 键 词：玻璃 发光性质 电子自旋共振谱 

分 类 号：O614.33[理学—无机化学] O657.32[理学—化学]