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IJPAP Vol.43(12) [December 2005] >


Title: Excitation energy transfer between Eu3+ and Tm3+ ions in zinc phosphate glass
Authors: Joshi, B C
Dhondiyal, Charu Ch
Keywords: Excitation energy
Non-radiative energy transfer
Phosphate glass
Fluorescent spectra
Issue Date: Dec-2005
Publisher: CSIR
IPC CodeG01J3/30
Abstract: Non-radiative energy transfer from Eu3+ to Tm3+ has been studied by observing the steady state emission of Eu3+ with varying concentration of Tm3+ in zinc phosphate glass. It has been observed that Eu3+ ion emission intensity decreases with increasing Tm3+ concentration resulting in a non-radiative energy transfer from Eu3+ to Tm3+ whereas energy transfer from Tm3+ to Eu3+ was not observed between donor and acceptor ions. This energy transfer has been explained on the basis of cross-relaxation of energy. The energy transfer mechanism and other parameters related to energy transfer between Eu3+ and Tm3+ have been computed.
Page(s): 918-920
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Source:IJPAP Vol.43(12) [December 2005]

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