Progress in Photovoltaics Research and Applications · 1999 · 14 citations · 0 references
EngineeringMaterials EngineeringMaterials ScienceElectronic MaterialsSemiconductor DevicesSemiconductor MaterialsChemical Vapor DepositionPhotovoltaic DevicesPhotovoltaic MaterialsSemiconductor Device MaterialsSolar Cell MaterialsSolar CellsEfficiencyFabricationLow-pressure Chemical Vapor DepositionPhotovoltaic Manufacturing ProcessesPhotovoltaic SystemsReproducibility AssessmentSolar Cell FabricationTest Reproducibility
This paper details the laboratory processes used to fabricate CdS/CdTe solar cells at the National Renewable Energy Laboratory. The basic fabrication technique includes low-pressure chemical vapor deposited SnO2 , chemical-bath deposited CdS, close-spaced sublimated CdTe, solution-CdCl2 treatment, and an acid-contact etch, followed by application of a doped-graphite paste. This paper also describes the results of a reproducibility study in which cells were produced by multiple operators with an average AM1·5 efficiency of 12·6%. And finally, this paper discusses process sensitivities and alternative cell fabrication procedures and reports the fabrication of a cell with an AM1·5 efficiency of 15·4%. Copyright © 1999 John Wiley & Sons, Ltd.