A solar cell and solar cell manufacture

Abstract

A method of manufacturing an interdigitated back contact solar cell is provided. The method comprises: providing a substrate having a back surface; arranging a plurality of first semiconductor elements on the back surface of the substrate, the first semiconductor elements having a back surface; treating the back surface of each first semiconductor element to provide each first semiconductor element with a textured back surface; and subsequently, arranging a plurality of second semiconductor elements on the back surface of the substrate, the plurality of second semiconductor elements interdigitated with the plurality of first semiconductor elements. The step of arranging the plurality of second semiconductor elements comprises: depositing a semiconductor layer onto the back surface of the substrate and the first semiconductor elements, said semiconductor layer comprising: second semiconductor elements interdigitated with the first semiconductor elements; and a plurality of waste portions deposited onto respective textured back surfaces of the first semiconductor elements; and separating the waste portions from the respective first semiconductor elements along the respective textured back surface.

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