Title :
Galvanostatically deposited Cd0.7Fe0.3Se electrode for solar cell application
Author :
Shinde, S.K. ; Thombare, J.V. ; Lohar, G.M. ; Barad, D.J. ; Fulari, V.J. ; Shinde, S.S.
Author_Institution :
Dept. of Phys., Shivaji Univ., Kolhapur, India
Abstract :
Thin films of Cd0.7Fe0.3Se have been prepared on stainless steel and fluorine doped tin oxide (FTO) coated glass substrates using electrodeposition technique. Double distilled water containing precursors of Cd, Fe and Se are used with ethylene diamine tetra-acetic acid (EDTA) disodium salt as a complexing agent to obtain good quality deposits by controlling the rate of reactions. The different preparative parameters like concentration of bath, deposition time, pH of the bath and Fe content in the bath have been optimized by photoelectrochemical (PEC) technique in order to get good quality thin films. Different techniques have been used to characterize electrodeposited Cd0.7Fe0.3Se thin films. The X-ray diffraction (XRD) analysis reveals that the films Cd0.7Fe0.3Se are polycrystalline in nature with crystallite size of 282 Å for the films deposited with optimized preparative parameters. Scanning electron microscopy (SEM) study reveals that all grains uniformly distributed over the surface of stainless steel substrate indicates well defined growth of polycrystalline Cd0.7Fe0.3Se material. Optical absorption shows the direct band gap energy of 1.84 eV. Photoelectrochemical (PEC) solar cell study shows the films of Cd0.7Fe0.3Se are more photosensitive.
Keywords :
II-VI semiconductors; X-ray diffraction; cadmium compounds; crystallites; electrochemical electrodes; electrodeposition; energy gap; iron compounds; light absorption; pH; photoelectrochemical cells; scanning electron microscopy; semiconductor growth; semiconductor thin films; solar cells; Cd0.7Fe0.3Se; EDTA disodium salt; FTO coated glass substrate; PEC solar cell; PEC technique; SEM; SnO2:Fe-SiO2; bath concentration; complexing agent; crystallite size; deposition time; direct band gap energy; double distilled water containing precursor; electrodeposited thin film; ethylene diamine tetra-acetic acid; fluorine doped tin oxide; galvanostatically deposited electrode; optical absorption; pH; photoelectrochemical solar cell; photosensitive; polycrystalline; scanning electron microscopy; stainless steel; stainless steel substrate; Electrodes; Films; Optical surface waves; Photovoltaic cells; Substrates; Surface treatment; Electrodepositiom; Photoelectrochemical solar cell; SEM; XRD; etc;
Conference_Titel :
Energy Efficient Technologies for Sustainability (ICEETS), 2013 International Conference on
Conference_Location :
Nagercoil
Print_ISBN :
978-1-4673-6149-1
DOI :
10.1109/ICEETS.2013.6533419
