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Effect of substrate temperature on structural, optical and thermal properties of chemically sprayed ZnS thin films

D. NITHYAPRAKASH1,* , P. MAADESWARAN1, J. CHANDRASEKARAN1, M. RAMAMURTHY1, P. THIRUNAVUKARASU2

Affiliation

  1. Department of Physics, Sri Ramakrishna Mission Vidyalaya college of Arts and Science, Coimbatore -20, Tamilnadu, India
  2. Department of Electronics, Sri Ramakrishna Mission Vidyalaya college of Arts andScience, Coimbatore -20, Tamilnadu, India.

Abstract

Zinc Sulfide thin films were successfully deposited on glass substrates by spray pyrolysis method. The films were grown at different substrate temperatures in the range, 300- 400˚C. The effects of substrate temperature on the structural and optical properties were studied. The XRD profiles showed that the films are polycrystalline with cubic structure grown preferentially along the (111) axis. The optical studies exhibit direct allowed transition. Energy band gap vary from 3.43 to 3.80 eV. The thermal behavior of the material has been investigated by TG/DTA and analyses..

Keywords

ZnS films, Spray pyrolysis, Substrate temperature, XRD, Optical and thermal properties.

Submitted at: July 21, 2010
Accepted at: Oct. 14, 2010

Citation

D. NITHYAPRAKASH, P. MAADESWARAN, J. CHANDRASEKARAN, M. RAMAMURTHY, P. THIRUNAVUKARASU, Effect of substrate temperature on structural, optical and thermal properties of chemically sprayed ZnS thin films, Journal of Optoelectronics and Advanced Materials Vol. 12, Iss. 10, pp. 2069-2074 (2010)