Russian scientists develop high conversion rate solar thin-film batteries

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According to the Russian "STRF" scientific website, a research team of the Institute of Physics of the Russian Academy of Sciences has developed a new type of solar thin-film battery. The silicon-based solar module has a theory of photoelectric conversion efficiency of 27%.

Russia’s “Хевел” company, through cooperation with Switzerland, has set up a solar cell in Russia to produce 100 megawatts of thin-film solar modules. Switzerland's production technology guarantees the photoelectric conversion efficiency of solar cell modules to 8.9%. In order to improve this technology and further increase the photoelectric conversion rate, in 2010, the Russian “Хевел” company established a thin-film solar cell technology research center at the Institute of Physics and Technology of the United States of America. The researchers of the center gradually converted the photoelectric conversion of the thin-film solar cell. The efficiency increased to 10% and then to 12%.

In a parallel study, Russian researchers worked to perfect a new product, a thin film solar cell based on silicon. In 2012, Japan’s Sanyo’s solar cell patent based on the crystalline amorphous heterojunction technology expired. Russian scientists used this patented technology to develop the research results of optoelectronic heterogeneity by Alofrov, the Nobel Prize winner. A new solar thin film battery. The new solar thin-film battery is based on silicon material, and a layer of amorphous silicon nano-film is formed on the surface of crystalline silicon by means of plasma chemical deposition. At present, the photoelectric conversion rate of industrial samples of thin-film solar cell modules based on this technology produced by the research center has reached 21%, which is more than 2 times that of conventional thin film solar cell modules.

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