Structural, Morphological and Optical Characterization of Photochemically Deposited Cadmium Selenide Thin Films

Sanjay W. Pawar1

Vilas A. Tabhane1

Prasad E. Lokhande1,Email 

Firoz Khan2

Jupender Kaur1

Amir Al-Ahmed2 

Habib M. Pathan1

1Advanced Physics Laboratory, Department of Physics, Savitraibai Phule Pune University, Pune- 411 007, India
2Interdisciplinary Research Centre for Renewable Energy and Power Systems Research Institute, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia

Abstract

Present work demonstrates a synthesis of nanocrystalline thin films of CdSe using photo-assisted chemical bath deposition techniques at room temperature. The structure of the CdSe films deposited under different coloured illumination was confirmed by X-ray diffraction and the effect of the monochromatic light on the growth rate was observed. The SEM result was demonstrated different morphology of the different films' surfaces, such as granular spherical, cauliflower, fiber, or wire, with a variety of porosity that was achieved by a simpler photochemical route. The results obtained from UV-visible spectra showed a decrease in the optical bandgap from 2 to 1.8 eV.

Structural, Morphological and Optical Characterization of Photochemically Deposited Cadmium Selenide Thin Films