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Structural, optical and photoconductive properties of electron beam evaporated CdSxSe1-x films

IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi

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Title Structural, optical and photoconductive properties of electron beam evaporated CdSxSe1-x films
 
Creator Sivaramamoorthy, K.
Bahadur, S.A.
Kottaisamy, M.
Murali, K.R.
 
Subject Electrochemical Materials Science
 
Description CdSxSe1-x films were deposited by the electron beam evaporation technique on glass substrates at different temperatures in the range 30 – 300 °C using the laboratory synthesized powders of different composition. The films exhibited hexagonal structure and the lattice parameters shifted from CdSe to CdS side as the composition changed from CdSe to CdS side. The bandgap of the films increased from 1.68 to 2.41 eV as the concentration of CdS increased. The root-mean-roughness (RMS) values are 3.4, 2.6, 1.2 and 0.6 nm as the composition of the films shifted towards CdS side. The conductivity varies from 30 Ωcm-1 to 480 Ωcm-1 as the ‘x’ value increases from 0 to 1. The films exhibited photosensitivity. The PL spectrum shifts towards lower energies with decreasing x, due to the decrease of the fundamental gap with Se composition.
 
Publisher WILEY-VCH Verlag GmbH & Co.
 
Date 2010
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://cecri.csircentral.net/206/1/2010-029_%282%29.pdf
Sivaramamoorthy, K. and Bahadur, S.A. and Kottaisamy, M. and Murali, K.R. (2010) Structural, optical and photoconductive properties of electron beam evaporated CdSxSe1-x films. Crystal Research and Technology, 45 (4). 414 -420. ISSN 0232-1300
 
Relation http://cecri.csircentral.net/206/