IMPROVED PHOTOVOLTAIC DEVICE

摘要

This invention is a layered thin film semiconductor device comprising a first transparent layer; a thin, second transparent layer having a conductivity less than the first transparent layer; and n-type layer; and a p-type layer comprising one or more IIB and VIA elements. This invention is also a method for making such semiconductor device. The thin film semiconductor devices of this invention are useful for making photovoltaic devices.