Mechanically V-textured low cost multicrystalline silicon solar cells with a novel printing metallization

Results of our high throughput mechanical texturization technology suitable for highly efficient multi Si solar cells are addressed. In this work different structuring tool designs have been investigated for implementation in a low cost screen printing multi Si solar cell process. The benefit of the mechanical texturization on the cell performance is shown in experiment and simulation before and after encapsulation. As a further topic, results of multicrystalline solar cells metallized with a novel printing method-the roller printing technique-are shown. It is based on self-aligned mask-free roller printing of metal, dopant or masking pastes on protruding regions of V-grooved silicon solar cells.