Photovoltaic device

摘要

The present invention provides a photovoltaic device comprising:
a substrate (110);
a first (151) and a second electrode (152); and
a gap insulation layer (160) between the two electrodes and on the substrate;
wherein the gap insulation layer comprises a portion (161) that has a higher silicon content to the rest (162) of the gap insulation layer and the portion with the higher silicon content is closer to the substrate.