Silicon solar cell has transparent and electrically conductive front electrode layer on transparent substrate, where negatively conducting layer stands in contact with back electrode layer

摘要

The silicon solar cell (1) has a transparent and electrically conductive front electrode layer (3) on a transparent substrate (2). A layer thickness of a negatively conducting layer (n) standing in contact with a back electrode layer (5) amounts to more than 25 nanometer. The negatively conducting layer, in contact with the back electrode layer, is made of micro- or nanocrystalline silicon, non-alloyed silicon layer, and silicon sublayer partially alloyed with carbon or oxygen. The non-alloyed or partially alloyed layer is composed of amorphous silicon.