"Even with selenium this type of cell has materials cost advantages over existing commercial thin films from First Solar made of cadmium and telluride. Also, th

"Even with selenium this type of cell has materials cost advantages over existing commercial thin films from First Solar made of cadmium and telluride. Also, this cell has advantages over the CIGS (copper indium gallium selenide) cells of the newer thin film manufacturers since indium and gallium cost more and CIGS also uses selenium." (source: http://www.futurepundit.com/archives/006938.html http://www.futurepundit.com/archives/006938.html)