Biswas, Prasanta Kumar (2006) Absorption and fluorescence properties of sol-gel based nanostructured transparent conducting oxide films on silica glass. Advanced Materials Research , 11-12 . pp. 183-188. ISSN 1662-8985

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Abstract

Nanostructured transparent conducting oxide (TCO) films such as tin doped indium oxide (ITO), antimony doped tin oxide (ATO), tin doped cadmium oxide (CTO) were deposited on suprasil grade pure silica glass from their respective precursors with wide variation of dopant concentration, 10, 30, 50, 70 at. % and their optical properties have been studied. The films were obtained by thermal curing (350 - 500 degrees C) in air. If the cluster size be decreased to nanoscale then blue shift of bulk band gap occurs due to the quantum confinement effect of the semiconducting TCO materials. Free carrier concentration of ITO and ATO films were in the order of 10(19) cc(-1). The Moss-Burstein shift occurred in each case. The photoluminescence (PL) behaviour of the nanostructured materials revealed emissions for the HOMO-LUMO excitonic transitions. This was identified by selecting the excitation energy according to the photoluminescence excitonic transitions (PLE)

Item Type:	Article
Additional Information:	Asian International Conference on Advanced Materials Location: Beijing, PEOPLES R CHINA Date: NOV 03-05, 2005
Uncontrolled Keywords:	sol-gel; nanostructure; TCO; optical band gap; fluorescence
Subjects:	UNSPECIFIED
Divisions:	UNSPECIFIED
Depositing User:	Mrs Chandana Patra
Date Deposited:	01 Feb 2012 12:39
Last Modified:	05 Apr 2016 09:22
URI:	http://cgcri.csircentral.net/id/eprint/629

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