Crystal and faceted dendrite growth of silicon near (100)

Xinbo Yang, Kozo Fujiwara, R. Gotoh, Kensaku Maeda, Jun Nozawa, Haruhiko Koizumi, Satoshi Uda

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

The crystal growth shape (CGS) and faceted dendrite growth of silicon near (1 0 0) are observed by in situ observation. The morphological transformations of the facets and curved orientations on the CGSs under different undercoolings (ΔT) are investigated, and the growth mechanism of the faceted dendrite is clarified. (1 1 0) facets with a low growth velocity and (1 0 0) curved interface with a relatively high growth velocity are observed on the crystal during the formation of silicon CGS, which shows a perfect foursquare shape dominated by (1 1 0) facets. At a relatively high ΔT, a faceted dendrite with a flat tip appears at the (1 1 0) facet of CGS. The (1 0 0) curved interface disappears with decreasing curvature. With increasing ΔT, both facet and curved interface growth velocities increase linearly, and the rate of curvature decrease increases. A two-dimensional image is developed to elucidate the growth mechanism of silicon 〈1 1 0〉 faceted dendrites near (1 0 0).

Original languageEnglish
Pages (from-to)3259-3267
Number of pages9
JournalActa Materialia
Volume60
Issue number8
DOIs
Publication statusPublished - 2012 May 1

Keywords

  • Crystal growth shape
  • Faceted dendrite
  • Silicon

ASJC Scopus subject areas

  • Ceramics and Composites
  • Metals and Alloys
  • Polymers and Plastics
  • Electronic, Optical and Magnetic Materials

Fingerprint Dive into the research topics of 'Crystal and faceted dendrite growth of silicon near (100)'. Together they form a unique fingerprint.

Cite this