August 18, 2006

SOLAR: The thin-film variants heading for the photovoltaic market

From micromorpheus to CIGS
Ever new thin-film technologies are moving out of the laboratories into factories. But which one has the most promising future? The amorphous silicon cell, which as yet has by far the highest market share of all thin-film cells? Or the CIS cell of cadmium indium diselenide, favoured by the media in the past ten years? Or maybe the CIGS cell of copper, indium, gallium and selenide, whose conversion efficiency promises to be the highest? Optionally also in the CIGSSe variant with sulphide? Or the micromorphous silicon cell, which is claimed to better the amorphous silicon in efficiency, but is based on the practically infinitely available silicon?