Advantages Of The Amorphous Silicon Thin Film Solar Cell
Author: Source: Datetime: 2016-09-09 15:11:08
1. The rate of absorption of amorphous silicon has a high optical absorption coefficient, especially in 0.3-0.75um of visible light, its absorption coefficient than the monocrystalline silicon to be an order of magnitude. Therefore it than monocrystalline silicon solar radiation about 40 times higher, with an amorphous silicon thin film (about 1um thick) useful to be able to absorb 90% of the solar energy. this is the most important characteristic of an amorphous silicon material, it is low-cost solar power battrery portable solar power generator can become the most important factor .
2. The band gap of amorphous silicon than monocrystalline silicon, with different preparation conditions varied in the range of about 1.5-2.0 eV, the open circuit voltage of this lifePo4 batteries made of amorphous silicon is high.
3. Preparation of the amorphous silicon technology and equipment is simple, low deposition temperature, short time, suitable for mass production. Production of monocrystalline silicon cells generally require more than 1000 degrees Celsius, while the portable solar power generator of amorphous silicon cells is only about 200 degrees .
4. Because there is no periodic arrangement of atoms amorphous crystalline silicon required, can not consider the lattice between the substrate material and the preparation of the crystal must be considered mismatch. So that portable solar power generator can be deposited on virtually any substrate, including inexpensive glass substrate, a large area is easy to implement.
5. Preparation of amorphous silicon solar cell energy consumption, recycling about 100 kilowatt-hours of energy consumption of a lot number is shorter than monocrystalline silicon cells.
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