Singh, Shiv Prakash and Karmakar, Basudeb (2011) Photoluminescence enhancement of Eu(3+) by energy transfer from Bi(2+) to Eu(3+) in bismuth glass nanocomposites. RSC Advances, 1 (5). pp. 751-754. ISSN 2046-2069

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Abstract

Bi(2+)-enhanced photoluminescence of Eu(3+) doped Bi(0)-bismuth glass nanocomposites are demonstrated here. The generation of bismuth nanoparticles (NPs) and its typical surface plasmon resonance at 460 nm are controlled by the oxidative method instead of the conventional reduction technique during melt-quench processing. TEM images evidence the presence of spherical Bi(0) NPs of 10-15 nm sizes and SAED pattern reveals their crystalline rhombohedral phase formation. The enhanced photoluminescence of Eu(3+) is found to occur at 613 and 703 nm due to (5)D(0 ->)(7)F(2) and (5)D(0)->(7)F(4) transitions respectively. We believe that it has happened due to energy transfer from Bi(2+) to Eu(3+).

Item Type:	Article
Subjects:	Glass
Divisions:	Glass
Depositing User:	Bidhan Chaudhuri
Date Deposited:	18 Jan 2012 06:41
Last Modified:	25 Feb 2013 08:36
URI:	http://cgcri.csircentral.net/id/eprint/351

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