Structural, Chemical Composition and Optical Properties of CdTe Fabricated by Vacuum Evaporation Technique

Abstract:

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CdTe polycrystalline thin films have been fabricated by vacuum evaporation technique. Their properties have been investigated using X-ray diffraction, energy dispersive spectroscopy, scanning electron microscope and uv-vis spectroscopy. The results showed that the CdTe thin films crystalized at hexagonal structure with lattice parameters a and c 6.45 Å and 7.66 Å respectively. The EDS results showed that the chemical composition is nonstoichiometry, slightly rich of Tellerium with Cd/Te of 0,9. It has a uniform shape with color homogenity and has an optical band gap at room temperature about 1.47 eV. Keywords:Vacuum evaporation, polycrystalline, cadmium telluride, thin films.

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Periodical:

Edited by:

Kuwat Triyana, Khairurrijal, Risa Suryana, Heru Susanto and Sutikno

Pages:

497-501

DOI:

10.4028/www.scientific.net/AMR.896.497

Citation:

Ariswan "Structural, Chemical Composition and Optical Properties of CdTe Fabricated by Vacuum Evaporation Technique", Advanced Materials Research, Vol. 896, pp. 497-501, 2014

Online since:

February 2014

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$35.00

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