A new BaB2Si2O8:Eu2/Eu 3, Tb3 phosphor Synthesis and photoluminescence properties

Saradhi, M P and Boudin, S and Varadaraju, U V and Raveau, B (2010) A new BaB2Si2O8:Eu2/Eu 3, Tb3 phosphor Synthesis and photoluminescence properties. Journal of Solid State Chemistry, 183 (10). pp. 2496-2500. ISSN 0022-4596

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Abstract

In the present work, we have synthesized maleevite mineral phase BaB 2Si2O8 for the first time, which is isostructural with the pekovite mineral SrB2Si2O 8. In these europium doped host lattices, we observed the partial reduction of Eu3 to Eu2 at high temperature during the synthesis in air. Tb3 co-doping in MB2Si2O 8:0.01(Eu3/Eu2) [M=Sr, Ba] improves the emission properties towards white light. The emission color varies from bluish white to greenish white under UV lamp excitation when the host cation changes from Sr to Ba. © 2010 Elsevier Inc. All rights reserved.

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IITH Creators:
IITH CreatorsORCiD
Item Type: Article
Uncontrolled Keywords: Borates; Borosilicates; Polyanionic network solids; Reduction of Eu3 in air; Solid state lighting; Tetrahedral borates; Borates; Borosilicates; Polyanionic networks; Solid state lighting; Tetrahedral borates
Subjects: Chemistry > Organic chemistry
Divisions: Department of Chemistry
Depositing User: Mr. Siva Shankar K
Date Deposited: 13 Oct 2014 04:27
Last Modified: 09 Apr 2015 10:28
URI: http://raiith.iith.ac.in/id/eprint/204
Publisher URL: http://dx.doi.org/10.1016/j.jssc.2010.07.008
OA policy: http://www.sherpa.ac.uk/romeo/issn/0022-4596/
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