Improvement to photovoltaic cells with a CdS-based polycrystalline layer

摘要

A CdS-based cell is formed from a CdS-Cu2S junction. A layer of a dielectric oxide 7 or of a similar compound is placed on the Cu2S layer 5 to prevent contact between the CdS layer 3 and the electrode 6 placed on the dielectric layer 7. Such cells have, in particular, a lower level of defects. <IMAGE>