On-line Magazine 'Sensors & Transducers' (S&T e-Digest)

    (ISSN 1726- 5479)

Vol. 72, Issue 10, October 2006, pp. 786-792

Structural and Optical Properties of Chemical Bath Deposited CuIn(S,Se)₂  Thin Films

R. H. Bari, L. A. Patil

Materials Research Lab, P.G. Dept. of Physics, Pratap College,

Amalner 425 401, India

^*Corresponding author: E-mail: rameshbari24@yahoo.com

Received: 26 September 2006 /Accepted: 18 October 2006 /Published: 23 October 2006

Abstract: Thin films of CuIn(S, Se)₂ have been prepared by chemical bath deposition technique at 60^o C on glass substrate. The deposition parameters such as pH, temperature and time have been optimized. All films were characterized by X-ray diffraction (XRD), Scanning electron microscopy (SEM), Energy dispersive X-ray analysis (EDAX), and Absorption spectroscopy. The morphology of the CuIn(S, Se)₂ was found to be nonstoichiometric. The set of films having different elemental compositions was prepared by varying Cu/In ratio from 1.86 to 12.15 (at %). The films with band gap energies varying from 1.15 eV to 1.54 eV were synthesized by varying composition.

Keywords: Thin films, CuIn(S,Se)₂; Deposition parameter; Composition; Grain size; Band gap energy

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