ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
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 suprasilgrade 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 thermalcuring (350 - 500°C) in air. If the cluster size be decreased to nanoscale then blue shift of bulk bandgap occurs due to the quantum confinement effect of the semiconducting TCO materials. Free carrierconcentration of ITO and ATO films were in the order of 1019 cc-1. The Moss-Burstein shift occurredin each case. The photoluminescence (PL) behaviour of the nanostructured materials revealedemissions for the HOMO-LUMO excitonic transitions. This was identified by selecting the excitationenergy according to the photoluminescence excitonic transitions (PLE)
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/39/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.11-12.183.pdf
Permalink