Chalcopyrite thin film solar cell with CdS / (Zn (S, O) buffer layer and associated manufacturing process

摘要

The invention is based on a chalcopyrite thin-film solar cell with a CIS absorber layer, a buffer layer applied directly on the CIS absorber layer and a ZnO-containing window layer applied directly on the buffer layer. The solar cell is characterized by the fact that the buffer layer consists of CdS and Zn (S, O), whereby a concentration of CdS decreases from the CIS absorber layer to the ZnO-containing window layer.