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Influence of substrate temperature on the properties of electron beam evaporated ZnSe films

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

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Title Influence of substrate temperature on the properties of electron beam evaporated ZnSe films
 
Creator Ahamed, M.G.S.B.
Nagarethinam, V.S.
Balu, A.R.
Thayumanavan, A.
Murali, K.R.
Sanjeeviraja, C.
Jayachandran, M.
 
Subject Electrochemical Materials Science
 
Description ZnSe films were deposited on glass substrates keeping the substrate temperatures, at room temperature (RT), 75, 150 and 250 °C. The films have exhibited cubic structure oriented along the (111) direction. Both the crystallinity and the grain size increased with increasing deposition temperature. A very high value of absorption co-efficient (104 cm-1) is observed. The band gap values decrease from a value of 2.94 eV to 2.69 eV with increasing substrate temperature. The average refractive index value is in the range of 2.39 – 2.41 for the films deposited at different substrate temperatures. The conductivity values increases continuously with temperature. Laser Raman spectra showed peaks at 140.8 cm-1, 246.7 cm-1 and 204.5 cm-1 which are attributable to 2TA LO phonon and TO phonon respectively.
 
Publisher WILEY-VCH Verlag GmbH & Co.
 
Date 2010
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://cecri.csircentral.net/201/1/2010-028_%282%29.pdf
Ahamed, M.G.S.B. and Nagarethinam, V.S. and Balu, A.R. and Thayumanavan, A. and Murali, K.R. and Sanjeeviraja, C. and Jayachandran, M. (2010) Influence of substrate temperature on the properties of electron beam evaporated ZnSe films. Crystal Research and Technology, 45 (4). 421 -426. ISSN 0232-1300
 
Relation http://cecri.csircentral.net/201/