Energy transfer luminescence in (Eu3+,Nd3+):: tellurite glass

被引:14
作者
Annapurna, K
Dwivedi, RN
Buddhudu, S [1 ]
机构
[1] Sri Venkateswara Univ, Dept Phys, Tirupati 517502, Andhra Pradesh, India
[2] Cent Glass & Ceram Res Inst, Glass Technol Sect, Kolkata 700032, W Bengal, India
关键词
energy transfer; luminescence; tellurite glass;
D O I
10.1016/S0925-3467(99)00088-9
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Here, we bring out an infrared transmitting new optical glass based on TeO2 added with AlF3 and LiF, containing dual rare earth ions (Eu3+,Nd3+) as the dopants with a purpose to examine their luminescence and also the decay times pertaining to a prominent transition of Eu3+ (D-5(0) --> F-7(2) at 615 nm) as a function of temperature both in the presence and absence of Nd3+ ions. The energy transfer rates (W-tr), critical distances (Ro) and transfer efficiencies (eta(tr)) have been evaluated based on the measured lifetime data of this glass. (C) 2000 Elsevier Science B.V.. All rights reserved.
引用
收藏
页码:381 / 388
页数:8
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