Absorption in a CIGS Solar Cell

Solar cells are a fundamental technology in the field of renewable energy. To optimize efficiency, most common designs use thin-layer structures and media with high absorption coefficients – as it is precisely this absorbed optical energy what will eventually be transformed into an electric current. Solar cells based on copper indium gallium selenide (CIGS) have become quite common as they can be made much thinner without losing absorption efficiency, compared with cells based on other materials.

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