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ФИЗИКО-ТЕХНИЧЕСКИЙ ИНСТИТУТ
НПО "ФИЗИКА-СОЛНЦЕ" АН РУз

A. S. Saidov and A. Yu. Leiderman, Electrophysical and Optical Properties of Silicon Produced by Multiple Remelting of Metallurgical Silicon by Concentrated Solar Beams (Review)

The review describes a new method for refining silicon—multiple melting of industrial silicon in open air in a solar furnace. The results of three, five and eightfold refining are given. In all cases, a sample of melted silicon with simple ohmic contacts during heating at T > 30°C becomes a current and voltage generator, which is explained by the processes of selforganization of deeplying impurities, leading to their periodic distribution along the sample. From such silicon, p–n transfer is obtained, which opens possibilities for practical application.



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