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It has been shown that using the technology of the melt gettering by aluminum it is possible to reduce the concentration of oxygen, decreasing the efficiency of photoelectric devices. The optically active oxygen content has decreased to 5·10 cm - at the beginning of the monocrystal, to -----at the end with a simultaneous increase in the uniformity of its distribution over the length and cross-section of the ingot. The lifetime of the minority carriers has been more than three times increased. The primary effect of solar degradation efficiency of solar cells has demonstrated less than 2% decrease.

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The technology of producing BN films by the magnetron dusting method has been considered. The electrophysical properties and the structure of the films have been investigated. The possibility of producing the optically transparent BN films, having the mechanically strong diamond-like structure, has been determined. The produced BN films can be recommended as the protective coatings for various designs, including, also, the multi-layer film structures used in electron devices as well as in technology of production of electronic products.

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