Design optimization of silicon solar cells for concentrated-sunlight, high-temperature applications

Abstract

This paper describes the utilization of a proven device analysis computer code in the design optimization of silicon solar cells for use in concentrated-sunlight (50-100 suns), high-temperature (less than or approximately equal to 100/sup 0/C) environments. The code provides detailed one-dimensional numerical solutions of carrier transport in the cell and greatly facilitates the identification of design modifications to effect performance improvement. In conjunction with these simulations, two-dimensional spreading resistance calculations are used to optimize the top electrode pattern of the cell. Solar cells have been fabricated and experimentally characterized to confirm theoretical predictions.