Kundu, Susmita and Das, Nilanjana and Chakraborty, Sriparna and Bhattacharya, Dipten and Biswas, Prasanta Kumar (2013) Synthesis of sol-gel based nanostructured Cr(III)-doped indium tin oxide films on glass and their optical and magnetic characterizations. Optical Materials , 35 (5). pp. 1029-1034. ISSN 0925-3467

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Abstract

Sol-gel based nanostructured Cr(III)-doped indium tin oxide (ITO) films (In:Sn:Cr = 84.6:9.4:6.0) deposited on silica glass were cured at 350 degrees C, 450 degrees C, 600 degrees C, 700 degrees C and 900 degrees C. EDX, absorption spectra and TEM images confirmed formation of Cr(III)-doped ITO nanoclusters close to Bohr radius of ITO. Excitonic and phonon interactions were studied by absorption, photoluminescence (PL) and Raman spectra. The photon energy between the satellite peaks of PL spectra predicted phonon vibrations. Strong hybridization between s-p-states of host and d-states of Cr(III) resulted in stable exciton-phonon coupling as revealed from excitonic and lattice phonon vibrations. Soft room temperature ferromagnetism was observed in the films. (C) 2012 Elsevier B.V. All rights reserved.

Item Type:	Article
Subjects:	Engineering Materials
Divisions:	Sol Gel
Depositing User:	Bidhan Chaudhuri
Date Deposited:	12 Sep 2013 08:11
Last Modified:	12 Mar 2016 18:02
URI:	http://cgcri.csircentral.net/id/eprint/2142

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