Sontakke, Atul D and Tarafder, Anal and Biswas, Kaushik and Annapurna, K (2009) Sensitized red luminescence from Bi(3+) co-doped Eu(3+): ZnO-B2O(3) glasses. Physica B-Condensed Matter, 404 (20). pp. 3525-3529. ISSN 0921-4526

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Abstract

Photoluminescence properties of Bi(3+) co-doped Eu(3+) containing zinc borate glasses have been investigated and the results are reported here. Bright red emission due to a dominant electric dipole transition (5)D(0) -> (7)F(2) of the Eu(3+) ions has been observed from these glasses. The nature of Stark components from the measured fluorescence transitions of Eu(3+) ions reveal that the rare earth ions could take the lattice sites of C, or lower point symmetry in the zinc borate glass hosts. The significant enhancement of Eu(3+) emission intensity by 346nm excitation ((1)S(0)->(3)P(1), of Bi(3+) ions) elucidates the sensitization effect of co-dopant. The energy transfer mechanism between sensitizer (Bi(3+)) and activator (Eu(3+)) ions has been explained. (C) 2009 Elsevier B.V. All rights reserved.

Item Type:	Article
Uncontrolled Keywords:	Zinc borate glasses; Bi(3+) sensitization; Eu(3+) emission; Energy transfer
Subjects:	Glass
Divisions:	Glass
Depositing User:	Bidhan Chaudhuri
Date Deposited:	02 Mar 2012 07:42
Last Modified:	11 Jun 2015 07:19
URI:	http://cgcri.csircentral.net/id/eprint/1122

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