High-efficiency CdTe thin-film solar cells using metalorganic chemical vapor deposition techniques

Abstract

Energy conversion efficiency of metalorganic chemical vapor deposited CdTe as an intrinsic active layer in n-i-p solar cell structures is reported. Small-area devices with efficiencies over 9% have been demonstrated. I–V characteristics, photospectral response, and the results of Auger profiling of structural composition for typical devices will be presented. Also presented are preliminary results on similar photovoltaic devices having Cd0.85Mn0.15Te in place of CdTe as an i layer.