Effect of thermal history on iron precipitation in crystalline silicon

Antti Haarahiltunen, Marko Yli-Koski, Hele Savin

    Research output: Contribution to journalArticleScientificpeer-review

    5 Citations (Scopus)
    165 Downloads (Pure)

    Abstract

    We have studied the effect of thermal history on iron precipitation behavior in intentionally contaminated Czochralski silicon wafers that contain well-defined precipitation sites for iron, oxide precipitates. Iron precipitation was studied at a temperature range between 600°C and 700°C for various times. The results indicate that iron precipitation is strongly affected by the thermal history of the wafers. Our results also explain the disagreement observed previously in iron precipitation behavior at low temperature anneals. Finally, we discuss how the results can be applied to gettering in multicrystalline silicon.
    Original languageEnglish
    Pages (from-to)355-359
    JournalEnergy Procedia
    Volume8
    DOIs
    Publication statusPublished - 2011
    MoE publication typeA1 Journal article-refereed
    EventInternational Conference on Crystalline Silicon Photovoltaics - Freiburg, Germany
    Duration: 17 Apr 201120 Apr 2011
    Conference number: 1

    Keywords

    • gettering
    • iron
    • precipitation
    • silicon

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