2013年3月17日星期日

Sweden developed indium phosphide nanowire solar cell efficiency of 13.8%



The scientists from the University of Lund, Sweden, has developed a 13.8% efficiency indium phosphide (InP) nanowire solar cells has reached similar levels and tablet InP battery. Its findings have been published in the new issue of the journal Science.

Mm size nanowire arrays on the substrate, the researchers created these nanowires only 180 nanometers in diameter, nanowires covering an area of
​​only 12% of the substrate, but the photocurrent solar panel manufacturers is 71% of the total generating capacity . The researchers also found that despite the nanowire structure than in the past to increase the specific surface area 30 times the surface the composite should bring a certain voltage loss, but the open-circuit voltage is still up to 0.906V. 

Magnus Borgström, one of the authors of the paper, the researchers of the University of Lund, said, "Our results for the first time confirmed to the people of the possibility of manufacturing solar cells using nanowire." He said, "the size of the nanowires increased light absorption crucial, even if the difference is only tens of nanometers, the light trapping properties of the nanowires will be greatly diminished. "

The achievement is part of Nanowire Photovoltaic Materials Research and Application "project led by Professor of Physics of the school Knut Deppert (AMON-RA), the project EU-funded. Conergy and its long-term partner Solaer announced the four cheap solar panels farm built in the UK is nearing completion.

Three solar farm in southwest England: two plants (5.8MW and 2.2MW) in Somerset, a (4MW) in Devon, to provide electricity for 3,200 families. Fourth solar farm (3.3MW) in Buckinghamshire, is expected to provide electricity to another 800 families.

These farms is part of Conergy many solar power plants built in the UK Following in Cornwall with Solaer last year completed a 5.3MW project construction. The company said, all projects use Conergy P-series components, the components of the price / performance ratio attractive, popular in Britain's fast-growing solar farm market.

The "ConergyUK general manager, said:" The home solar panels farm developers and investors are looking for bankable technology, Conergy to provide them with reliable components as well as the experience gained over the years RobertGoss. In the right place to build solar farm is a convenient way to effectively promote the optimization of energy structure in the United Kingdom, to reduce the pressure of rising gas prices, and the cost and time required to establish a new gas station or nuclear power plants. '

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