Thin Film Technology
A thin-film solar panel is made of thin films of semiconductors deposited on glass, plastic or metal. The films are incredibly thin, often 20 times thinner than c-Si wafers. This makes thin-film solar panels flexible and lightweight. If the thin-film cells are encased in plastic, the product could be flexible enough to mold to a roof’s shape; when glass is used, thin-film panels are more rigid and heavier.
There are three common thin-film divisions: amorphous silicon (a-Si), cadmium telluride (CdTe), and copper indium gallium selenide (CIGS) or gallium-free CIS.
CIGS solar cell, in full copper indium gallium selenide solar cell, thin-film photovoltaic device that uses semiconductor layers of copper indium gallium selenide (CIGS) to absorb sunlight and convert it into electricity. As the performance, uniformity, and reliability of CIGS products improve, the technology has the potential to expand its market share significantly and may eventually become a disruptive technology.
NO.1 in the world among the technological route of flexible CIGS sputtering, the conversion efficiency reaches 19.4%; the mass-produced champion module (AA) reaches 17.44%, The unbreakable vacuum successive sputtering technology is deemed as the top flexible GIGS sputtering method globally.
High conversion efficiency, light weight, ultra-thin, bendable, can be directly pasted, low installation cost, it is suitable for light load and curved roof, as well as the application development of civil products.
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