Title

Electrical and optical properties of Indium sesquitelluride (In<sub>2</sub>Te<sub>3</sub>) thin films.

Authors

Desai, R. R.; Lakshminarayana, D.; Patel, P. B.; Panchal, C. J.

Abstract

Indium sesquitelluride (In2Te3) thin films were grown on glass substrates using a flash evaporation technique. The nature of contact phenomena of Ag, Sn, In, Zn, Al-(p) In2Te3 junctions had been investigated. Ag, Sn, In and Zn metals were found to provide ohmic contact for In2Te3 thin films. The variation of DC-electrical resistivity of In2Te3 thin films with temperature was studied at different substrate temperatures. The optical measurements revealed that the flash evaporated In2Te3 thin films possessing direct energy band-gap. The variation of optical energy gap with substrate temperature was investigated. Film thickness, substrate temperature, composition and crystallinity were found to determine the optimization of electrical and optical properties of In2Te3 thin film.

Subjects

INDIUM; THIN films; EVAPORATION (Chemistry); TELLURIDES; TELLURIUM compounds; GLASS

Publication

Journal of Materials Science, 2006, Vol 41, Issue 7, p2019

ISSN

0022-2461

Publication type

Academic Journal

DOI

10.1007/s10853-006-4502-x