Copper indium gallium selenide

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Copper indium gallium selenide (CIGS) is a new semiconductor material comprising copper, indium, gallium, and selenium, CuInGaSe2. Its main use is for high-efficiency photovoltaic cells (CIGS cells), in the form of polycrystalline thin films. Unlike the silicon cells based on p-n junction, the structure of CIGS is a complex heterojunction system. The best efficiency achieved as of December 2005 was 19.5%[citation needed].

The CIGS films are manufactured by depositing nanoparticles of the precursor materials on the substrate and then sintering them in situ. [1]

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[edit] References

    [edit] External links

    http://msn-cnet.com.com/Silicon+vs.+CIGS+With+solar+energy,+the+issue+is+material/2100-1008_3-6121488.html

    National Pollutant Inventory - Copper and compounds fact sheet


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