Novel Concentrator Photovoltaic Converter System Development. Final Report, January 24-August 30, 1979

摘要

The long-range objective of this work is to develop, synthesize, and evaluate a novel cascade solar cell having an AM1 conversion efficiency of 30% or greater, and which is capable of operating at both high illumination levels and elevated temperatures. The major emphasis has been on a study of several material systems for their potential use in the cascade solar cell. Studies have included basic materials properties as well as p-n junction studies for the top cell, tunnel junction, and bottom cell. While junctions appropriate to each individual part of the cascade cell have been demonstrated, problems still remain in fabricating a high efficiency cascade solar cell because of material and growth problems with the semiconductor layers which have optimum bandgaps. (ERA citation 05:015170)