CuxS(p) — CdZnS(n) — CdS(n+) Evaporated Thin Film Solar Cells
The orientation and size of crystallites may be improved in Cd1-y ZnyS films when they are condensed on a CdS layer previously deposited in the same vacuum provided that the ZnS concentration y does not exceed 12 %. Backwall cells were made by means of the solid state reaction for different ZnS concentrations. The photovoltage increases with ZnS concentration y while very little changes occur for the photocurrent when y values are in the range 0-0.12.
The current transport mechanism remains dominated by recombination tunneling currents. L.B.I.C. scannings indicate that the photoresponse of the cells are quite homogenous.
KeywordsSulfide Recombination ECSC
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