Physical Properties of Cadmium Sulphur Films Obtained at Different pH Values
Abstract
Cadmium sulphide films have been deposited onto the glass substrates by chemical bath deposition method at different pH values (10.00, 10.10, 10.20, 10.30) at 80 oC. X-ray diffraction spectra of the films have shown that the films are cubic in structure. To determine the optical properties of the CdS films UV-vis spectrophotometer was used. Optical absorption and transmittance optical values of the films were determined from the absorbance measurements in the visible range. It has been found that the forbidden energy band gap values of the films decrease with increasing pH values and change between 2.42-2.38 eV. The transmission efficiency of CdS films were exhibit about between 84%-65% in the visible region. The surface properties and roughness values of the films were determined using atomic force microscopy. FESEM images show that the films are generally homogeneous distribution in spherical structure. The elemental composition of the films was determined from the EDX study.
Keywords
References
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Details
Primary Language
English
Subjects
-
Journal Section
Research Article
Authors
Ahmet Şenol Aybek
Hilal Rüzgar
Publication Date
September 30, 2017
Submission Date
March 2, 2017
Acceptance Date
May 10, 2017
Published in Issue
Year 1970 Volume: 38 Number: 3