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1) single crystal silicon solar cells
Monocrystalline silicon solar photoelectric conversion efficiency is about 15%, the highest of 24%, this is the all kinds of solar cells photoelectric conversion efficiency is the highest, but the production cost is very big, so that it can't be extensive and widespread use. Due to the commonly used single crystal silicon waterproof resin toughened glass, and encapsulate, so its rugged construction and general service life can amount to 15 years, up to 25 years.
(2) the polycrystalline silicon solar cells
The making craft of polycrystalline silicon solar cell and single crystal silicon solar battery is similar, but polycrystalline silicon solar battery photoelectric conversion efficiency is to reduce a lot, the photoelectric conversion efficiency is about 12% (on July 1, 2004, Japan's sharp market efficiency as 14.8% of the world's highest efficiency of polycrystalline silicon solar cells). In terms of production cost is cheaper than monocrystalline silicon solar cells, the material is simple, saving power consumption, the total production cost is low, so get a lot of development. In addition, the service life of the polycrystalline silicon solar cells will also shorter than monocrystalline silicon solar cells. Will tell from the price performance ratio, monocrystalline silicon solar battery is slightly better.
(3) of amorphous silicon solar cells
Amorphous silicon solar cell is a new kind of thin film type solar cell in 1976, with the method of making the monocrystalline silicon and polycrystalline silicon solar cell, a completely different process greatly simplified, silicon very little material consumption, lower power consumption, its main advantage is in low light conditions can also generate electricity. But the amorphous silicon solar cell is the main problems the photoelectric conversion efficiency is low, at present the international advanced level of about 10%, and not enough stable, with the extension of time, the attenuation of conversion efficiency.
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