Abstract

In this paper the design of a thin film coating to optimize the performance of a textured silicon solar cell is described. A ray optics approach is used to determine the reflection characteristics of texture cells with a two-layer thin film coating. A generalized expression for the external quantum efficiency in terms of the given internal quantum efficiency and the coating parameters is determined. The parameters of the thin film layers, the refractive indices and the thicknesses are determined so as to maximize the integrated cell response to an air mass 2 spectrum.

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