Substrate Structure
Solar cells are built from various material combinations.

aSi & aSi/µSi
This technology is based upon doped amorphous and microcrystalline Silicon as the absorber.

CIGS
Thin-film solar cells with a light-absorbing layer of copper, indium, gallium and silicon.

CdTe
Cadmium telluride is used as an absorber for thin-film solar cells.