Compensated Silicon Crystals by Metallurgy Route

Kh A. Abdullin, B. A. Beketov, G. N. Chumikov, B. N. Mukashev, M. F. Tamendarov, T. S. Turmagambetov, M. R. Page, D. M. Kline

Research output: Contribution to journalArticlepeer-review


The alumothermic reduction of silica from silicate slag was studied for obtaining a silicon-containing alloy (SCA). A synthetic slag (SS) with composition close to that of phosphorous industry waste (PIW) is used. SS consists of more than 90% silicon dioxide, calcium oxide and less than l0% of other element's oxides. SCA was upgraded by acid leaching up to pure silicon of a fine powder structure. Compensated poly- and mono-crystalline silicon, with resistivity from 0.6 (bottom of crystal) to 4 (top of crystal) Ohm · cm, was grown by Czochralski method using this powder.

Original languageAmerican English
Pages (from-to)854-858
Number of pages5
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
Issue number3
StatePublished - 2011

NREL Publication Number

  • NREL/JA-5200-46593


  • Acid leaching
  • Alumothermic reduction
  • Melting
  • Metallurgical-grade silicon
  • Monocrystals
  • Polycrystals
  • Silicon
  • Solidification


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