ISBN: | 978-5-5093-0178-0 |
High Quality Content by WIKIPEDIA articles! Copper indium gallium selenide (CuIn1-xGaxSe2 or CIGS) is a direct bandgap semiconductor useful for the manufacture of solar cells. Because the material strongly absorbs sunlight, a much thinner film is required than of other semiconductor materials. The CIGS absorber is deposited on a glass backing, along with electrodes to collect current.