Abstract

Structured interfaces to enhance light trapping are standard concepts for silicon solar cells. Within this simulation study we investigated the influence of the refractive index of front side coupling structures on top of a crystalline silicon solar cell on the light trapping performance. Simulations were carried out both at cell level and for the complete module stack. The light trapping behavior can only be reliably assessed if the complete system is investigated. It could be shown that the refractive index of the light trapping structure strongly influences the light trapping behavior.

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