Copper indium gallium selenide (CIGS) thin-film solar panels are known for their high efficiency, flexibility, and lightweight design, making them a key alternative to traditional crystalline silicon (c-Si) solar cells. . While much of solar panels are made up of minerals you can easily call to mind — like aluminum, copper, and silicon — others you won't come across in your daily life. And, not all solar panels are the same. Your home solar panels might not have the exact same makeup as those on your local box. . Meta description: Explore why rare metals like indium and tellurium are vital for solar panels, their supply chain risks, and emerging alternatives. Learn how the renewable energy sector is tackling material scarcity through innovation. Photograph courtesy of SoloPower, Inc.
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A copper indium gallium selenide solar cell (CIGS cell, sometimes CI(G)S or CIS cell) is a used to convert sunlight into electric power. It is manufactured by depositing a thin layer of solid solution on glass or plastic backing, along with electrodes on the front and back to collect electric current. Because the material has a high and strongly absorbs sunlight,.
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