Oriented silicon carbide nanowires: Synthesis and field emission properties

Zhengwei Pan, Hau Ling Lai, Frederick C.K. Au, Xioafeng Duan, Weiya Zhou, Wensheng Shi, Ning Wang, Chun Sing Lee, Ning Biu Wong, Shuit Tong Lee, Sishen Xie

Research output: Contribution to journalArticlepeer-review

508 Scopus citations

Abstract

Oriented SiC nanowires were prepared by reacting aligned carbon nanotubes with SiO at 1400 °C for 2 h. The orientation, diameter, and length of the oriented SiC nanowires were similar to those of the original aligned carbon nanotubes, suggesting that the carbon nanotubes acted as a template to confine the reaction. The field emission properties of the well-oriented nanowires were measured. Field emission current densities of 10 μA/cm2 were observed at applied fields of 0.7-1.5 V/μm, and current densities of 10 mA/cm2 were realized at applied fields as low as 2.5-3.5 V/μm. The results represent the lowest field ever reported for any field-emitting materials at technologically-useful current densities.

Original languageEnglish
Pages (from-to)1186-1190
Number of pages5
JournalAdvanced Materials
Volume12
Issue number16
DOIs
StatePublished - 16 Aug 2000
Externally publishedYes

ASJC Scopus subject areas

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering

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