Chawla, Santa and Jayanthi, K. and Chander, Harish (2008) Enhancement of luminescence in ZnMgO thin-film nanophosphors and application for white light generation. Physica Status Solidi a Applications and Materials Science, 205 (2). pp. 271-274. ISSN 0031-8965

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Abstract

A series of ZnMgO thin-film nanophosphors with varied Zn:Mg ratio has been prepared by chemical bath deposition. The structure, photoluminescence, time-resolved decay and chromaticity of the films are presented. ZnMgO films absorb light efficiently in the near UV (330–400 nm) and the emission covers a large part of the visible spectrum. Luminescence enhancement is maximum for 25% Mg. All ZnMgO films show luminescence lifetimes in the microsecond range while low Mg content (0–10%) films also exhibit fast decay (10–10 s). Measured colorimetric coordinates of (0.28, 0.32) when excited by 350 nm light make them suitable for generation of white light in conjunction with near UV LEDs.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Subjects:	Materials Science Physics
Divisions:	UNSPECIFIED
Depositing User:	Ms Neetu Chandra
Date Deposited:	08 Jan 2014 08:11
Last Modified:	08 Jan 2014 08:11
URI:	http://npl.csircentral.net/id/eprint/1013

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