Microstructure and growth mechanism of SiC nanowires with periodically fluctuating hexagonal prisms by CVD

Yanhui Chu, Qiangang Fu, Zhengzhong Zhang, Hejun Li, Kezhi Li, Qin Lei

Research output: Contribution to journalLetterpeer-review

32 Scopus citations

Abstract

SiC nanowires with periodically fluctuating hexagonal prisms were synthesized on graphite substrates by a simple and economical technique of chemical vapor deposition in an Ar atmosphere without catalyst assistant. The morphology and structure of SiC nanowires were characterized by X-ray diffraction, Raman scattering spectrum, scanning electron microscopy and transmission electron microscopy. The results showed that the as-synthesized SiC nanowires possessed well crystalled β-SiC, and were composed of periodically fluctuating hexagonal prisms along their whole length with the [1 1 1] growth direction. The growth of SiC nanowires with periodically fluctuating hexagonal prisms was governed by vapor-solid mechanism.

Original languageEnglish
Pages (from-to)L36-L39
JournalJournal of Alloys and Compounds
Volume508
Issue number2
DOIs
StatePublished - 22 Oct 2010

Keywords

  • Crystal growth
  • Microstructure
  • Nanowires
  • Silicon carbide

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