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.