Applied Physics Letters · 1993 · 55 citations · 2 references
Natural SciencesMaterials EngineeringMaterials ScienceElectronic MaterialsSemiconductor MaterialsThin FilmsPhotovoltaic DevicesPhotovoltaic MaterialsPhysical Vapor DepositionSolar Cell MaterialsSolar CellsThin-film MaterialsAbsorber MaterialsEnergy Conversion EfficiencyLight-absorbing LayersOpen-circuit VoltagePolycrystalline MaterialsPower Conversion EfficiencyThin-film AbsorbersThin-film Solar Cells
An important development in polycrystalline Cu(In,Ga)Se2 (CIGS) thin-film photovoltaic solar cells is the attainment of a high voltage device simultaneous with state-of-the-art conversion efficiency. This letter describes a CIGS-based solar cell that demonstrates an open-circuit voltage (Voc) approaching 700 mV and a total-area conversion efficiency of 12.2%. The high value of Voc was achieved by grading In/Ga through the absorber by a computer-controlled physical vapor deposition (PVD) process that utilizes variable metal fluxes.
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ZnO/CdS/CuInSe2 thin-film solar cells with improved performance
Lars Stolt, Jonas Hedström, M. Ruckh et al. · Applied Physics Letters · 1993 · 463 citations
Natural Sciences, Materials Engineering, Materials Science +17