3 An optical company and a leading U.S. company Emcore CPV in the Wuhu Economic and Technological Development Zone, set up joint venture money invested, “three subjects photovoltaic limited liability company.” The joint venture will mainly produce the third generation of photovoltaic products - high-concentrator solar laptop battery (the HCPV).
The: 3 An optical funded 18 million U.S. dollars, Emcore invested 12 million U.S. dollars, the two sides were holding ratio of 60% and 40%.
HCPV as the third generation of solar power systems and broad prospects.
Concentrating photovoltaic (CPV) technology, is through the lens to enlarge the solar energy received hundreds of times, and then enlarge the energy to focus on high efficiency, small size of the photovoltaic cells on photoelectric conversion.
Condenser battery commonly used III-V compound semiconductor (eg: AsGa) as the epitaxial layer, mainly because of III-V family compound with good heat dissipation, radiation good advantage, but the traditional crystalline silicon as heat dissipation problem can not be applied. The conversion efficiency, the theory of crystalline silicon solar cell conversion efficiency of about 25%. Conversion efficiency of the current industrialization of 16% -18% at the level of the multi-junction III-V family of cell theory of more than 60% conversion rate, conversion efficiency of the current industrialization has increased to 40% conversion efficiency of the great advantages is that people concerned about the CPV important factors. In addition, by concentrating CPV technology, multi-cell concentrator hundreds of times a multiple of the area that light can be so reduced to one per cent, compared with the traditional crystalline silicon cells can save a lot of raw materials, this can reduce the solar power system production costs and energy consumption, make concentrating solar energy system has a shorter recovery period.
Help companies to seize the lead investment CPV industry position.
An optical current use of three germanium, gallium arsenide, gallium indium phosphorus 3 different semiconductor materials three pn junction solar cell, could be the sun light from blue light, infrared and visible light absorption of the whole spectrum. This multi-junction concentrator solar cells can reach multiples of 1,000 times to 2,000 times, after the condenser, the conversion efficiency of 30% can be based on further increase of 8% to 10%, it can be said with the industry in technology conditions, and because of GaAs epitaxial layer and the LED wafer production process is similar, the company can experience in the field of LED extension to a multi-junction CPV batteries go, reducing the company’s exploration in process of time, instead of more The focus on system design.