1.
They are known as thin-film because they
are deposited in very thin layers on stainless steel, glass or a flexible
substrate. The thickness of the film is less than 1 micron. Like c-Si,
thin-film PV cells are combined into modules and laminated to protect them from
the elements. They are less expensive than c-Si cells, but their demonstrated
energy conversion efficiency is only around 8%. The advantage of thin-film
technology is that it can be applied over large areas, providing more
opportunity to generate electricity in cloudy conditions.
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