Secondary nanotube growth on aligned carbon nanofibre arrays for superior field emission

J Nanosci Nanotechnol. 2008 Apr;8(4):2147-50. doi: 10.1166/jnn.2008.069.

Abstract

We report substantial improvement of the field emission properties from aligned carbon nanotubes grown on aligned carbon nanofibres by a two-stage plasma enhanced chemical vapour deposition (PECVD) process. The threshold field decreased from 15.0 to 3.6 V/microm after the secondary growth. The field enhancement factor increased from 240 to 1480. This technique allows for superior emission of electrons for carbon nanotube/nanofibre arrays grown directly on highly doped silicon for direct integration in large area displays.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Crystallization / methods*
  • Electric Conductivity
  • Macromolecular Substances / chemistry
  • Materials Testing
  • Molecular Conformation
  • Nanotechnology / methods*
  • Nanotubes / chemistry*
  • Nanotubes / ultrastructure*
  • Particle Size
  • Surface Properties

Substances

  • Macromolecular Substances