To study the optical and structural properties of cadmium oxide thin film by electrodeposition method on stainless steel substrate

Prakash D. Mapari1, A.B. Gite2, S.V. Dhanwate3, R.S. Dhake4, V.S. Khairnar5 and A.V. Kokate6

1,5,6Bhujbal Knowledge City, MET’s Institute of Polytechnic, Adgaon, Nashik - 422 003 (India). 2,3Bhujbal Knowledge City, MET’s Institute of Engineering , Adgaon, Nashik - 422 003 (India). 3Swami Muktanand College of Science Yeola, Nashik - 422 003 (India).

Received on August 08, 2009 and accepted on October 15, 2009

ABSTRACT

The cadmium oxide (CdO) thin film has been deposited onto stainless steel substrate by using electrodeposition method. 0.1 M CdO solution used for good quality deposition, and then optimized preparative parameter like electrolytic bath concentration, deposition time, current density and pH of electrolytic solution shown yellowish colour film. The x-ray diffraction (XRD) analysis of the deposited film showed presence of polycrystalline with cubic structure. Optical absorption studies reveal that the values of absorption coefficient is in the order of 104 cm-1 , indicating direct band to band transition with band gap energy 2.2 eV , close to it’s value of intrinsic band gap energy. The surface morphology studies by scanning electron microscope (SEM) , shows that the deposited film are well adherent and grains are uniformly distributed over the surface of substrate.

Keywords : Electrodeposition, X-ray, CdO, SEM.