Catalyst free low temperature direct growth of carbon nanotubes

T. Uchino, K. N. Bourdakos, C. H. De Groot, P. Ashburn, S. Wang, M. E. Kiziroglou, G. D. Dilliway, D. C. Smith

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A metal catalyst free direct growth process has been developed for the CVD of carbon nanotubes (CNTs) on carbon implanted SiGe islands or Ge dots on Si substrates. From TEM and Raman measurements, the fabricated CNTs are identified as single-walled CNTs (SWNTs) with diameter ranging from 1.2 to 2.1 nm. Essential parts of the substrate preparation after SiGe or Ge dot growth and carbon ion implantation are a chemical oxidation and preheating at 1000°C prior to CNT growth. We believe that the lower melting point of Ge and oxidation enhanced surface decomposition assist the formation of carbon clusters.

Original languageEnglish
Title of host publication2005 5th IEEE Conference on Nanotechnology
Pages857-860
Number of pages4
DOIs
StatePublished - 2005
Externally publishedYes
Event2005 5th IEEE Conference on Nanotechnology - Nagoya, Japan
Duration: Jul 11 2005Jul 15 2005

Publication series

Name2005 5th IEEE Conference on Nanotechnology
Volume2

Conference

Conference2005 5th IEEE Conference on Nanotechnology
Country/TerritoryJapan
CityNagoya
Period07/11/0507/15/05

Keywords

  • CVD
  • Carbon nanotube
  • Catalyst free
  • SWNT
  • VLSI technology

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