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Germany and Germany issued a new type of highly efficient polysilicon solar cells

Time: 2019-05-10 View: 1913

Germany Fraunhofer Solar Systems Research Institute recently announced that they developed a high-performance polysilicon solar cells, photoelectric conversion rate of up to 21.9%.
Photoelectric conversion rate refers to the photovoltaic technology through the solar energy into electrical energy efficiency, is to evaluate the performance of solar cells is an important indicator.
Researchers, the current photovoltaic industry commonly used by the P-type polycrystalline silicon material made of solar cells, the average photoelectric conversion rate of about 19%, and they developed a new type of solar cells using N-type high-performance polysilicon materials, and P-type polysilicon material phase Than the tolerance of iron and other impurities higher. This new type of photovoltaic cell has a good anti-reflective, looks almost black.
Research project leader Yang Bainick said they will continue to carry out research to further tap the potential of N-type polysilicon materials, narrowing the gap between polysilicon and monocrystalline silicon cells in the photoelectric conversion rate.
Polycrystalline silicon cells and monocrystalline silicon cells are common solar cells. Compared with monocrystalline silicon cells, polycrystalline silicon cells photoelectric conversion rate is relatively low, but the cost is lower, so it is widely used.
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