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Synthesis and properties of 10% Zn doped CdTe thin films

S. SHANMUGAN1,* , D. MUTHARASU1

Affiliation

  1. Nano Optoelectronics Research Laboratory, School of Physics, Universiti Sains Malaysia (USM), 11800, Penang, Malaysia

Abstract

Te/Cd/Te/Zn/Cd stacked layers were prepared for 10% Zn doping. All stacks were annealed from 200 °C – 500 °C and confirmed as polycrystalline nature. CdTe and ZnTe cubic/hexagonal phases were identified at high annealing temperature. Transmittance against wave length emphasized the significance of 10% Zn in Te/Cd stack. The optical constants n and k were calculated as n = 1.52-2.45 and k = 0.07-0.36. The band gaps (Eg) were observed between 1.38 and 1.44 eV at above 350 °C. A uniform surface morphology could be observed at high annealing temperatures.

Keywords

Multilayer, Physical vapor deposition (PVD), Structural properties, Topography, Surface properties.

Citation

S. SHANMUGAN, D. MUTHARASU, Synthesis and properties of 10% Zn doped CdTe thin films, Optoelectronics and Advanced Materials - Rapid Communications, 4, 10, October 2010, pp.1601-1607 (2010).

Submitted at: Sept. 24, 2010

Accepted at: Oct. 14, 2010