Cover Page October-2014-Advanced Materials Letters

Advanced Materials Letters

Volume 5, Issue 10, Pages 604-610, October 2014
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Tb3+ Doped Sr2(BO3)Cl  Green Emitting Phosphor For Solid State Lighting

Vishal R. Panse1, N.S. Kokode2, S.J. Dhoble1*

1Department of Physics, R.T.M. Nagpur University, Nagpur 440033, India

2Director, BCUD, Gondwana University, Gadchiroli 442605, India

Adv. Mater. Lett., 2014, 5 (10), pp 604-610

DOI: 10.5185/amlett.2014.amwc432

Publication Date (Web): Nov 09, 2014

E-mail: sjdhoble@rediffmail.com

Abstract

In this paper we present luminescence results on Tb 3+ doped Sr2(BO3)Cl green phosphor. The vibrational properties of Sr2(BO3)Cl phosphor was studied by Fourier transform infrared spectroscopy. Photoluminescence studies have been carried out to understand the mechanism of excitation and the corresponding emission in the as prepared phosphor. As the Tb3+ ion is commonly used as an activator for the green emission, the excitation and emission spectra indicate that this phosphor can be effectively excited by 380 nm, to exhibit bright green emission centered at 546 nm corresponding to the f→f transition of Tb3 +ions.

Keywords

Green emitting phosphor, borates, photoluminescence, XRD, SEM, FTIR

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