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copper indium gallium selenide (CIGS)

In the case of solar cells, research is being conducted into combinations of elements that are cheaper to manufacture and more efficient than the various silicon structures. Copper indium diselenide (CIS) and copper indium gallium selenide (CIGS) are such element combinations, which have already been used in solar technology

for

years.

Flexible thin-film solar module in CIGS, photo: global-solar.eu

Flexible thin-film solar module in CIGS, photo: global-solar.eu

The cost savings are about the use of materials and the processing possibilities. While silicon in solar cells has a thickness of at least 150 µm, with CIGS thin-film solar cells can be produced with a layer thickness of about 1 µm, which leads to enormous material savings. Since glass or polyamide film is used as the substrate, it is possible to produce flexible solar modules

. As far as efficiency is concerned, this is around 15 %. In research laboratories, solar cells with an efficiency of over 20 % have already been produced.

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Englisch: copper indium gallium selenide - CIGS
Updated at: 31.10.2019
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Translations: DE