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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 60o 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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