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Absorption and fluorescence properties of sol-gel based nanostructured transparent conducting oxide films on silica glass

IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata

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Title Absorption and fluorescence properties of sol-gel based nanostructured transparent conducting oxide films on silica glass
 
Creator Biswas, Prasanta Kumar
 
Description 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)
 
Publisher Trans Tech Publications
 
Date 2006-02
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://cgcri.csircentral.net/629/1/biswas.pdf
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
 
Relation http://cgcri.csircentral.net/629/