Effects of Copper Doping on Chalcogenide (Cadmium Sulfide) Thin Films by Chemical Bath Deposition Method |
Author(s): |
| R. Ganesh , RVS College of Engineering and Technology; V. Senthil kumar, Karpagam University; M. Raja , SRMV College of Arts and Science; K. Ravi kumar, RVS College of Engineering and Technology; J. Chandrasekaran, SRMV College of Arts and Science |
Keywords: |
| thin films, CBD method, optical properties, structural properties . |
Abstract |
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Chalcogenide cadmium sulfide (CdS), with various concentrations of Cu2+ (0.1, 0.2, 1 and 2M) - doped CdS thin films have been successfully synthesized by a chemical bath deposition (CBD) method. The synthesized thin films were characterized by UV–Visible absorption (UV–Vis), X-ray diffraction (XRD) and photoluminescence (PL) spectroscopy. The absorption peaks of the synthesized films were noticeably blue / red-shifted from the bulk material depends on the different Cu2+ molar concentration. The bandgap value of the films decreases within the Cu2+ concentration. The XRD analysis confirmed the formation of polycrystalline in nature for all samples. The average size of the particles ranged from 9.55 nm to 129nm. The decrease of luminescence intensity at the higher Cu2+ concentrations and Particles with increased Cu2+ concentrations had a red shift in their PL emission spectra. |
Other Details |
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Paper ID: IJSRDV2I5409 Published in: Volume : 2, Issue : 5 Publication Date: 01/08/2014 Page(s): 772-775 |
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