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Tuesday, 12 July 2011

Further research needs to be done to bring nano-tuned solar cells to the market
July 11, 2011

Photovoltaic cells have been known for a long time. In semiconductors such as silicon crystals sunlight creates an electric current, which can directly be fed into the power grid. The sun has enough power to supply the whole earth with electricity. But in Europe solar cells make only a vanishing small share of renewable energy sources. Solar cell production is still an expensive process. And the photovoltaic cells can only exploit about 16 percent of the energy of the sunlight.

Physicist Dr. Sylvain Nicolay at the École Polytechnique Fédérale de Lausanne (EPFL) in Neuchatel, Switzerland, is working with a different type of solar cells, the so called thin film solar cells.
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