Physical chemistry on the preparation of β-FeSi2semiconductor by the exchange reaction between molten salts and silicon

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Until now, it is difficult to obtain the β-FeSi2 bulk crystal directly from the Fe-Si binary liquid, however, in this study, the new method to prepare β-FeSi2 film on Si Substrate by cation exchange reaction between molten salts and Si have been established. In addition to that, the doping method (such as Co, Ni, etc.) to β-FeSi2 by this exchange reaction was suggested, and the electrical and optical properties of this β-FeSi2 film was investigated.