Improved performance in ZnO/CdS/CuGaSe₂ thin‐film solar cells

Abstract

Abstract We report the growth and characterization of improved efficiency wide‐bandgap ZnO/CdS/CuGaSe 2 thin‐film solar cells. The CuGaSe 2 absorber thickness was intentionally decreased to better match depletion widths indicated by drive‐level capacitance profiling data. A total‐area efficiency of 9·5% was achieved with a fill factor of 70·8% and a V oc of 910 mV. Published in 2003 by John Wiley & Sons, Ltd.