摘要
研究了紫外光激发下，（ＲＥＯ）３ＢＯ３（ＲＥ＝ Ｌａ、Ｇｄ、Ｙ）基质中Ｐｒ３＋ 的光谱性质；探讨了基质晶格、阳离子半径、Ｐｒ３＋ － Ｏ２－ 键的共价性等因素对光谱性质的影响；分析了Ｐｒ３＋ 的发光强度随组成变化的规律性及Ｐｒ３＋ 的３Ｐ１→３Ｆ２ 跃迁发射的自身浓度猝灭机理。
In this paper,the photoluminescence of Pr 3+ in (REO) 3BO 3(RE=La,Gd,Y) excited by UV light has been studied.The results obtained indicate the influence of the host lattice,radius of positive ion and the covalency of the Pr 3+ -O 2- bond on the spectral character. The dependence of the 1uminescent intensities on the concentration of Pr 3+ in (REO) 3BO 3(RE=La,Gd,Y) and investigated the mechanism of concentration selfquenching of Pr 3+ in (REO) 3BO 3(RE=La,Gd,Y) have been analyzed.
出处
《光谱实验室》
CAS
CSCD
2000年第1期74-76,77,共4页
Chinese Journal of Spectroscopy Laboratory
关键词
光致发光
自身浓度猝灭
稀土硼酸盐
镨离子
REO) 3BO 3(RE=La,Gd,Y):Pr 3+ ,Photoluminescence,Concentration Selfquenching.
