Microstructure investigation of SiC films synthesized from liquid phase in Sm-Co melts

Pei Ting Lee, Pramoda K. Nayak, Sheng Chang Wang, James C. Sung, Jow Lay Huang

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Silicon carbide layers were grown on a Si substrate at a temperature below 1100 °C and pressure of 105Pa. The synthesis was carried out in a tube furnace through cyclic heating process using methane as a carbon source and Sm-Co mixed powder as a solvent. The growth of SiC from rare earth Sm-based solvent is an innovative approach, and Co can promote the formation of solvent during the growth process. The structural and compositional analyses were carried out using X-ray diffraction, electron probe micro-analyzer, scanning electron microscopy and transmission electron microscopy. Results indicated that β-SiC was successfully fabricated on Si (1 1 1) substrate. The heterogeneous nucleation of β-SiC was found to be observed initially at the edge of triangle-shaped sites on Si (1 1 1) surface that formed due to the existence of Co, and then grew and expanded to form β-SiC film. The growth process of SiC via vapour-liquid-solid mechanism was also discussed in this study.

Original languageEnglish
Pages (from-to)634-646
Number of pages13
JournalSuperlattices and Microstructures
Volume50
Issue number6
DOIs
Publication statusPublished - 2011 Dec 1

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Microstructure investigation of SiC films synthesized from liquid phase in Sm-Co melts'. Together they form a unique fingerprint.

  • Cite this