Growth and Characterization of Carbon Nanotubes on Constantan (Cu-Ni-Mn Alloy) Metallic Substrates Without Adding Additional Catalysts

Abstract

In this study, metallic constantan (Cu55-Ni44-Mn1 wt %) alloy substrates were investigated as an alternate choice of substrates to grow carbon nanotubes (CNTs). No additional catalysts were used other than the as-rolled and annealed substrates to process CNTs on them. High density CNT growth was observed to take place on these substrates when suitable conditions were used in a thermal chemical vapor deposition (CVD) furnace with C2H2 as the carbon precursor. Scanning electron microscopy and transmission electron microscopy on these samples indicated the presence of several micron long CNTs ranging in 20 to 100 nanometers in diameter. Raman spectra taken from the samples confirmed the presence of G band peaks {peak at approx. 1580 cm(exp -1)} and D band peaks {peak at approx. 1320 cm(exp -1)} commonly observed in CVD grown multiwall CNT samples varying intensity.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 2007
Accession Number
ADA501845

Entities

People

  • Chakrapani V. Varanasi
  • J. Baca
  • J. Bulmer
  • John H. Burke
  • K. Yost
  • L. Brunke
  • P. Barnes

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Carbon Nanotubes
  • Chemical Vapor Deposition
  • D Band
  • Electron Microscopes
  • Electron Microscopy
  • Fullerenes
  • High Density
  • Materials Processing
  • Microscopes
  • Microscopy
  • Raman Spectra
  • Scanning Electron Microscopy
  • Spectra
  • Transmission Electron Microscopy
  • Vapor Deposition

Fields of Study

  • Materials science

Readers

  • Nanocomposite Materials Science
  • Spectroscopy.
  • Thin Film Deposition Science.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene