Luminescence and energy transfer phenomena of several rare earth ions in the CaAl2B2O7

被引：33
作者：
You, HP [1 ]
Hong, GY [1 ]
机构：
[1] CHINESE ACAD SCI,CHANGCHUN INST APPL CHEM,CHANGCHUN 130022,PEOPLES R CHINA
来源：
MATERIALS RESEARCH BULLETIN | 1997年 / 32卷 / 06期
关键词：
optical materials; oxides; luminescence; optical properties; CE-3+; TB-3+;
D O I：
10.1016/S0025-5408(97)00042-1
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The luminescence properties of Ce3+, Gd3+, and Tb3+ have been investigated in the compound CaAl2B2O7. The single excitation band peaking at about 320 nm and single emission band peaking at about 384 nm for Ce3+, without the characteristic doublet, are attributed to the extensive crystal-field splitting of 4f ground state. The emission of Gd3+ consists of well-known sharp lines and two weak bands around 319.5 and 325 nm. These bands are due to the coupling of Gd3+ with BO33- groups. The green emission of Tb3+ is considerably sensitized by Ce3+. Energy transfer from Ce3+ to Tb3+ in CaAl2B2O7 is efficient. (C) 1997 Elsevier Science Ltd.
引用
收藏
页码：785 / 790
页数：6
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