Evaluation of transparent carbon nanotube networks of homogeneous electronic type

Roderick K. Jackson, Andrea Munro, Kenneth Nebesny, Neal R Armstrong, Samuel Graham

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

In this report, we present a description of the optical and electronic properties of as-deposited, annealed, and chemically treated single-walled carbon nanotube (SWNT) films showing metallic or semiconducting behavior. As-deposited and annealed semiconducting SWNT films were significantly less conductive than metallic SWNT films; however, chemical treatment of semiconducting SWNT films resulted in sheet resistance values as low as 60 Ω · sq-1 in comparison to 76 Ω · sq -1 for similarly processed metallic SWNT films. We conclude that the greater improvement of electrical conductivity observed in the semiconducting SWNT film results from the difference in the density of available electronic states between metallic and semiconducting SWNTs. A corroborative investigation of the change in surface work function and the chemical composition of SWNT films, as revealed by X-ray photoelectron spectroscopy, is provided to support these conclusions and to give new perspective to the formation of electronically homogeneous SWNT networks.

Original languageEnglish (US)
Pages (from-to)1377-1384
Number of pages8
JournalACS Nano
Volume4
Issue number3
DOIs
StatePublished - Mar 23 2010

Fingerprint

Carbon Nanotubes
Single-walled carbon nanotubes (SWCN)
Carbon nanotubes
carbon nanotubes
evaluation
electronics
Semiconducting films
Metallic films
Electronic density of states
Sheet resistance
Electronic properties
chemical composition
X ray photoelectron spectroscopy
Optical properties
photoelectron spectroscopy
optical properties
electrical resistivity
Chemical analysis

Keywords

  • Carbon nanotubes
  • Doping
  • Fermi level
  • Transparent electrodes
  • Work function

ASJC Scopus subject areas

  • Engineering(all)
  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

Evaluation of transparent carbon nanotube networks of homogeneous electronic type. / Jackson, Roderick K.; Munro, Andrea; Nebesny, Kenneth; Armstrong, Neal R; Graham, Samuel.

In: ACS Nano, Vol. 4, No. 3, 23.03.2010, p. 1377-1384.

Research output: Contribution to journalArticle

Jackson, Roderick K. ; Munro, Andrea ; Nebesny, Kenneth ; Armstrong, Neal R ; Graham, Samuel. / Evaluation of transparent carbon nanotube networks of homogeneous electronic type. In: ACS Nano. 2010 ; Vol. 4, No. 3. pp. 1377-1384.
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