Sanyo will help develop new solar cell production technology
Tokyo September 9 Sanyo Electric of Japan has successfully developed a high-speed production of silicon thin film technology and use new technology to produce a dual structure of thin film solar cells, so as to lower the cost of production higher photoelectric conversion efficiency of practical solar cells possible.
According to "Nikkei Industry News" reported on the 9th, the silicon thin film solar cells generally use plasma chemical vapor deposition generated. Plasma chemical vapor deposition of elements is gaseous silicon spray to the substrate, but if you need large area of film, it is easy to spray the gas pressure drop can slow down the formation of membrane. Sanyo Electric Co., Ltd. through the nozzle of the spraying gaseous silicon flat shape changed from the original pyramid, succeeded in maintaining high pressure gaseous silicon.
Technical staff with new technology trial of vertical 55 cm, 65 cm horizontal solar panels, thin film formation speed is equivalent to 3 nm thick per second. If you use this new technology to produce 2-micron thick layer of silicon film, the speed increases to 9 times the original. Solar panels up to 9.84% photoelectric conversion efficiency than thin film solar cells is usually 5-8% higher conversion efficiency.
Enhancement of manufacturing speed, so that a substantial increase in output of each device, resulting significantly lower production costs. According to Sanyo Electric Company, if used for actual mass production, then the cost per watt of power is about 150 yen (about 1.4 U.S. dollars), about half of crystalline silicon.
Sanyo is also planning to verify whether the new technology for the production of vertical 1.1 m, 1.4 m large horizontal panels, also want to upgrade to a photoelectric conversion efficiency of 14%.
There are many types of solar cells, thin film solar cells as thin, so its use of silicon raw material is only 1% of polysilicon solar cells, and therefore cheaper. However, the photoelectric conversion efficiency of crystalline silicon solar cells is only half of the latter's conversion efficiency over 20%. To achieve mass production of thin film solar cells, can be set large area, low price and high conversion efficiency of three conditions are indispensable, but to meet these three conditions very difficult.
Power stations in the planning
The U.S. technology company has developed a Evoasis power station plant which can contribute significantly to the success of electric cars. The facility has 20 bays where virtually every tank electric car model can be fueled with electricity. For fueling, power use and this leads to a reduction in charging time of a few hours to twenty minutes. The fueling is handled by professionals while the drivers in a lounge can take a break.
Alternatively, he can look in the tank bay of his car from recent movies on a TV screen. The lounge offer small snacks, coffee and surf-station. The cost is 75 pounds per year and associated power costs. Currently there are no details are known to be expensive as the construction of such a solar gas station is.
In London, the first tank is currently under construction and will soon begin operations. On the German market are enjoying an increasing popularity of electric cars but a missing station network currently prevents a definitive breakthrough. The construction of such power stations network would cause construction costs in the billions. Electric cars and Twike CityEL are among the vehicles with the highest circulation in Europe.
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