Syed, K.A.Z. and Kaleeswari, P. and Thirumalai, J. and Manoharan, SP. and Sundararaj, A. and Jagannathan, R. (2008) Opto-impedance characteristics of europium doped strontium aluminate and strontium chloro-apatite phosphors: A comparison. Journal of Physics D: Applied Physics, 41 (17). ISSN 0022-3727

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Abstract

Opto-impedance characteristics of the long persistent strontium aluminate : Eu2+ phosphor system have been compared with fluorescent strontium chloro-apatite : Eu2+ phosphor. This study has shown that optical pumping on the long persistent phosphor sample leads to a type of charge build-up and subsequent dispersion through a diffusion process occurring on a slow time scale (∼s) centring on the Dy3+ ion in agreement with a three-level scheme based on Dy3+ related hole-trapping–detrapping mechanism.

Item Type:	Article
Subjects:	Electrochemical Materials Science
Divisions:	UNSPECIFIED
Depositing User:	ttbdu cecri
Date Deposited:	18 Jan 2012 06:25
Last Modified:	19 Oct 2012 10:50
URI:	http://cecri.csircentral.net/id/eprint/244

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