For 2010, amorphous silicon and polysilicon stature (part 1)
Crazy time was still suffering from the pain of the polysilicon industry, and its solar array, “close” - began to attract capital Searched amorphous silicon. CCIN raw statistics showed that in a short period of time less than a year, the company launched the project on amorphous silicon, Sichuan, Chengdu, Jiangsu, Henan, Hebei, Inner Mongolia, Shandong, Fujian and other provinces the planned investment volume has reached tens of billions. If caused the sudden emergence of the industry’s attention. Amorphous silicon and polycrystalline silicon size to become the next solar cell materials do? VGP-BPS8 VGP-BPS8A VGP-BPS9
A number of advantages over silicon
It is understood that the amorphous silicon and polysilicon is the manufacture of solar photovoltaic panels in the two main raw materials, the field is two photovoltaic Lord. Amorphous silicon thin film cells, solar (called amorphous silicon cell) manufacturing methods are the method of electron cyclotron resonance, a method of photochemical vapor deposition, such as DC glow discharge method, using the above method may be a silane gas in glass, plastic or sheet metal, etc. in a thin film deposited on the substrate. Amorphous silicon thin film, the most important is a high absorption coefficient, is that it can be the most important factor in solar VGP-BPS9A/B VGP-BPS9/S cells. In comparison with the polycrystalline silicon solar cells, amorphous silicon cells with a simple preparation of raw materials and low cost. Both a large-scale production of low temperature, the anti-radiation, can be arbitrary curved, lightweight, rugged and so on.
Amorphous silicon cells are actually not a new thing. By 1990, the United States of amorphous silicon cell with the plane was flying from San Diego, California, U. S. East Coast West Coast North Carolina State job grams Kaiti, the flight distance of 400 km. But then the photoelectric conversion efficiency of amorphous silicon cells only 4% to 6%, the amorphous silicon project application has been temporarily shelved. VGP-BPS9/B VGP-BPS9A
In recent years, with its photoelectric conversion efficiency and improved service life, technology, amorphous silicon cells re-emphasized. It is understood that, in the United States, amorphous silicon market share of the battery is on the rise, while the polysilicon cells showed downward trend in market share. According to the Investment Advisor, published by China, 2009-2012 Solar PV Industry Investment Analysis and Forecasting “report shows that world production in 2007 to 400 MW amorphous silicon cells, amorphous silicon cells in 2008 World production reached 892 trillion watts, an increase of 123%. The agency predicted the United States, cell capacity amorphous silicon in 2015 will reach 26 gigawatts, solar power more than half come from cells amorphous silicon. compaq Presario V4000 battery compaq Presario V5000 battery
In comparison with the polycrystalline silicon, amorphous silicon, energy and environmental benefit is obvious. Siemens technology to improve overall production of polycrystalline silicon tetrachloride by-product is most serious environmental problems exist, but less polluting production technology of amorphous silicon.
Solar Technology in Fujian Platinum Holdings Peng Yang Libin, Executive Director, said: “All the gas deposit amorphous silicon cells in plasma may be attached to the process of glass production at the maximum temperature of only 200 ℃, low energy consumption, pollution-free. “compaq Presario V2000 battery compaq Presario 1700 battery
In addition to energy and environmental issues, the cost is a major advantage of amorphous silicon. The thickness of amorphous silicon cells less than 1 micron, less than the thickness of crystalline silicon cells 1 / 100, which significantly reduces manufacturing costs. The current cost of polysilicon Minutes ~ 1.3 to 1.2 yuan per kilowatt-hour. According to Peng Libin, currently the cost of production of amorphous silicon cells polysilicon only one third of the cost of the benefit is obvious. Therefore, some experts predict, the future battery technology will become amorphous silicon solar photovoltaic technology into the mainstream. sony PCGA-BP2E battery sony PCGA-BP2NX battery
