Gallium and indium co-doped ZnO thin films for white light emitting diodes

Chirakkara, Saraswathi and Krupanidhi, SB (2012) Gallium and indium co-doped ZnO thin films for white light emitting diodes. In: Physica Status Solidi - Rapid Research Letters, 6 (1). pp. 34-36.

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Abstract

Ga and In co-doped ZnO (GIZO) thin films together with ZnO, In-doped ZnO (IZO), Ga-doped ZnO (GZO), and IZO/GZO multilayer for comparison, were grown on corning glass and boron doped Si substrates by PLD. The photoluminescence spectra of GIZO showed a strong white light emission and the current-voltage characteristics showed relatively lower turn-on voltage and larger forward current. The CIE coordinates for GIZO were observed to be (0.31, 0.33) with a correlated colour temperature of 6650 K, indicating a cool white light, and establishing a possibility of white light emitting diodes. (C) 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Item Type:	Journal Article
Publication:	Physica Status Solidi - Rapid Research Letters
Publisher:	John Wiley and Sons
Additional Information:	Copyright of this article belongs to John Wiley and Sons.
Keywords:	ZnO;doping;multilayers;photoluminescence
Department/Centre:	Division of Chemical Sciences > Materials Research Centre
Date Deposited:	28 Mar 2012 06:11
Last Modified:	28 Mar 2012 06:11
URI:	http://eprints.iisc.ac.in/id/eprint/44096

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