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International Journal of Optics
Volume 2014 (2014), Article ID 865814, 9 pages
http://dx.doi.org/10.1155/2014/865814
Research Article

Optical Properties of Malachite Green Dye Doped SiO2 Glasses: Effect of Transition Metal (Fe-I) Used as a Codopant

Assam University, Diphu Campus, Karbi Anglong, Assam 782462, India

Received 6 January 2014; Accepted 12 April 2014; Published 22 May 2014

Academic Editor: Sulaiman Wadi Harun

Copyright © 2014 Dulen Bora and Subrata Hazarika. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Enhanced luminescence properties of Malachite Green (MG) (oxalate) in Fe-MG codoped SiO2 glasses compared to its values in MG doped SiO2 glasses are reported here. The enhancement is chiefly attributed to a resonance nonradiative energy transfer between Fe and MG. The quantum yield of Malachite Green (MG), in presence of Iron, trapped in sol-gel derived SiO2 glass increases by an order of ~103 compared to that in low viscous solvent while a lifetime of 3.29 ns is reported.