Investigations on surface passivated CdS and Cds:As-based photoelectrochemical cells

Lalasaheb P. Deshmukh; D. S. Hulle; P. P. Hankare; A. H. Manikshete

doi:10.1117/12.56965

1 February 1992 Investigations on surface passivated CdS and Cds:As-based photoelectrochemical cells

Lalasaheb P. Deshmukh, D. S. Hulle, P. P. Hankare, A. H. Manikshete

Proceedings Volume 1523, Conference on Physics and Technology of Semiconductor Devices and Integrated Circuits; (1992) https://doi.org/10.1117/12.56965
Event: Conference on Physics and Technology of Semiconductor Devices and Integrated Circuits, 1992, Madras, India

Abstract

Cadmium sulphide thin films (equals 3.4 micrometers ) doped with 0.25 wt % As concentration were deposited onto a well-polished stainless steel substrate by an electroless chemical deposition process. The photoelectrochemical (PEC) cells were fabricated using both H₂-annealed and etched samples as a photoelectrode, sulphide/polysulphide as an electrolyte, and graphide as a counter electrode. The cell was illuminated by a 100 mW/cm² light intensity, and the performance of a cell in terms of cell parameters, namely, short circuit current (Isc) open circuit voltage (Voc), junction quality factor ((eta) ), series and shunt resistances (Rs and Rsh), efficiency ((eta) ), fill factor (ff) and barrier height ((Phi) B), has been investigated. It has been found that the cell generates maximum power output when the CdS:As photoelectrode is subjected to a hydrogen atmosphere at 250 degree(s)C for approximately 1 hour and etched with a CuCl:KCN system for 20 seconds. An attempt is made to explain these observations on the basis of a modified surface, improved crystallinity, and enhanced conductivity of the samples.

Citation Download Citation

Lalasaheb P. Deshmukh, D. S. Hulle, P. P. Hankare, and A. H. Manikshete "Investigations on surface passivated CdS and Cds:As-based photoelectrochemical cells", Proc. SPIE 1523, Conference on Physics and Technology of Semiconductor Devices and Integrated Circuits, (1 February 1992); https://doi.org/10.1117/12.56965

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