Fabrication of CdS/CdTe Thin Film Solar Cells via the Technique of Electrodeposition

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2018

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Development of Solar Power Generation and Energy Harvesting

Abstract

This study focused on fabrication of CdS/CdTe solar cells using the technique of electrodeposition as it is simple, low cost and scalable method. Initially, CdS and CdTe materials were individually deposited on fluorine doped tin oxide (FTO) glass substrates and optimum growth conditions were obtained by analyzing their structural, compositional, electrical, optical and morphological properties using the techniques of X-ray diffraction, Energy Dispersive X-ray spectroscopy, photo-electrochemical cell study, optical absorption spectroscopy and scanning electron microscopy respectively. Thereafter, final device structure ofglass/FTO/CdS/CdTe/Au was fabricated using the optimum growth conditions obtained for the two materials, CdS and CdTe. Finally the current density-voltage characteristics of the devices were obtained to assess devices. The best device structure exhibited short circuit current density (L) of 24.4 mA cm- 2, open circuit voltage (V) of 681.9 mV, Fill Factor (FF) of 0.32 and conversion efficiency of 5.4 per cent.

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Keywords

Cadmium telluride, Thin films, Cadmium sulfide, Solar energy materials, Electrodeposition, Solar cells

Citation

Atapattu, H.Y.R., De Silva, D.S.M., Ojo, A.A., and Dharmadasa, I.M. (2018). Fabrication of CdS/CdTe Thin Film Solar Cells via the Technique of Electrodeposition. Development of Solar Power Generation and Energy Harvesting. Chapter 13.

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