The effect of grain boundary characteristics on the morphology of the crystal/melt interface of multicrystalline silicon

Kozo Fujiwara, Masaya Ishii, Kensaku Maeda, Haruhiko Koizumi, Jun Nozawa, Satoshi Uda

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

The effect of grain boundary characteristics on the crystal/melt interface morphology during the unidirectional solidification of multicrystalline Si was studied by in situ observations. It was shown that sharp and smooth grooves were formed at the crystal/melt interfaces at Σ27 and random grain boundaries, whereas no grooves were formed at Σ3 {1 1 1} twin boundaries. We explain the reasons why the grooves form at grain boundaries and discuss the impurity segregation at the grain boundary grooves on the crystal/melt interface.

Original languageEnglish
Pages (from-to)266-269
Number of pages4
JournalScripta Materialia
Volume69
Issue number3
DOIs
Publication statusPublished - 2013 Aug 1

Keywords

  • Crystal/melt interface
  • Grain boundary character
  • Impurity Segregation
  • Solidification

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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