High efficiency solar cell innovation perovskite

A solar cell with the growing popularity of cheap perovskite material will be made available next year. Physicist organizational networks reported on 9, the average efficiency of such cells to capture solar energy at about 20%. Recently \”natural materials\” magazine paper, a detailed report of the University of California at Berkeley and the Lawrence Berkeley National Laboratory scientists have a new design, which achieved an average steady-state efficiency of 18.4% -21.7%, and 26% peak efficiency. These figures are a new record perovskite solar cells. 效率创新高的钙钛矿太阳能电池 The solar cell prepared by mixing a perovskite organic molecules and inorganic elements, can be like a common silicon based solar cells as capture and sunlight into electricity, but the perovskite more readily than silicon photovoltaic device fabricated on a flexible substrate . Currently, the polycrystalline silicon solar cell conversion efficiency for the majority of the market supply of household equipment and between 10% -20%. While the most efficient silicon solar cells can achieve 25% pure, but the cost is very expensive. Perovskite solar cell that success depends on a new method, combining two kinds of perovskite will solar cell material. Researchers describe said new method of manufacturing a solar cell structure out somewhat like a road car, graphene airgel as sturdy as hardcore play the role of a solid foundation, two perovskite layer as deposited thereon finer gravel and sand, hexagonal boron nitride layer allows two kinds of perovskite materials can work together, and the gallium nitride layer as the top layer of asphalt for roads. Each turn color or absorb different wavelengths of sunlight, and further integration into almost the entire visible light absorption spectrum \”graded bandgap,\” solar cell. Prior to try combining two reasons for the failure of perovskite materials, is due to lower other electronic properties to each other, while the new method was successfully solved this problem. The first author of the paper Onur E Jien said: \”It has the potential to be the cheapest on the market of photovoltaic devices that can access any home solar system.\”

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