“There are four major types of thin-film solar panels: amorphous [silicon], cadmium telluride (CdTe), copper gallium indium diselenide (CIGS), and organic solar panels.” From energysage.com.
So, you seem to be correct, but there are other types of solar cells. Any idea of the proportions?
No idea. I’ve been processing silicon since the 70s. Not interested in the toxic and only slightly more efficient exotics.
The cadmium and lead doesn't come from the solar cells, it comes from the solder used to make the connections. The cells themselves are recovered and recycled into raw material for new cells.
“organic solar panels”
I gotta get me some at Whole Solar Panels : )