Electroplating of CdTe thin films from cadmium sulphate precursor and comparison of layers grown by 3-electrode and 2-electrode systems

DHARMADASA, I, MADUGU, Mohammad L., OLUSOLA, Olajide I., ECHENDU, Obi K, FAUZI, Fijay, DISO, Dahiru, WEERADINGHE, Ajith, DHARMADASA, Ruvini, LAVERY, Brandon, JASINSKI, Jacek B., KRENTSEL, Tatiana A. and SUMANASEKERA, Gamini (2017). Electroplating of CdTe thin films from cadmium sulphate precursor and comparison of layers grown by 3-electrode and 2-electrode systems. Coatings, 7 (2), p. 17.

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Official URL: http://www.mdpi.com/2079-6412/7/2/17
Link to published version:: 10.3390/coatings7020017

Abstract

Electrodeposition of CdTe thin films was carried out from the late 1970s using the cadmium sulphate precursor. The solar energy group at Sheffield Hallam University has carried out a comprehensive study of CdTe thin films electroplated using cadmium sulfate, cadmium nitrate and cadmium chloride precursors, in order to select the best electrolyte. Some of these results have been published elsewhere, and this manuscript presents the summary of the results obtained on CdTe layers grown from cadmium sulphate precursor. In addition, this research program has been exploring the ways of eliminating the reference electrode, since this is a possible source of detrimental impurities, such as K+ and Ag+ for CdS/CdTe solar cells. This paper compares the results obtained from CdTe layers grown by three-electrode (3E) and two-electrode (2E) systems for their material properties and performance in CdS/CdTe devices. Thin films were characterized using a wide range of analytical techniques for their structural, morphological, optical and electrical properties. These layers have also been used in device structures; glass/FTO/CdS/CdTe/Au and CdTe from both methods have produced solar cells to date with efficiencies in the region of 5%–13%. Comprehensive work carried out to date produced comparable and superior devices fabricated from materials grown using 2E system.

Item Type: Article
Uncontrolled Keywords: Electrodeposition; CdTe; CdSO4 precursor; solar energy materials; CdS/CdTe solar cells
Research Institute, Centre or Group: Materials and Engineering Research Institute > Thin Films Research Centre > Electronic Materials and Sensors Research Group
Identification Number: 10.3390/coatings7020017
Related URLs:
Depositing User: Jill Hazard
Date Deposited: 20 Jan 2017 14:14
Last Modified: 20 Sep 2017 19:16
URI: http://shura.shu.ac.uk/id/eprint/14817

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