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Structural, optical, and electrical properties of electron beam evaporated CdSe thin films

✍ Scribed by M. G. Syed Basheer Ahamed; A. R. Balu; V. S. Nagarethinam; A. Thayumanavan; K. R. Murali; C. Sanjeeviraja; M. Jayachandran

Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
158 KB
Volume
45
Category
Article
ISSN
0232-1300

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✦ Synopsis

Abstract

CdSe films have been deposited on glass substrates at different substrate temperatures between room temperature and 300 Β°C. The films exhibited hexagonal structure with preferential orientation in the (002) direction. The crystallinity improved and the grain size increased with temperature. Band gap values are found decreasing from about 1.92 eV to 1.77 eV with increase of the substrate temperature. It is observed that the resistivity decreases continuously with temperature. Laser Raman studies show the presence of 2 LO and 3 LO peaks at 416 cm^‐1^ and 625 cm^‐1^respectively. (Β© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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