Electronic properties of tetrahedral amorphous carbon (ta-C) films containing nanotube regions

G. A J Amaratunga, Manish Chhowalla, K. G. Lim, D. A I Munindradasa, S. D. Pringle, M. Baxendale, I. Alexandrou, C. J. Kiely, B. Keyse

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The electronic and optical properties of nitrogen doped tetrahedral amorphous carbon (ta-C:N) are compared with those of a new form of carbon ta-C film in which nanotube regions are included (ta-C(NT)). It is found that nanotubes in ta-C inhibit the N doping effect in ta-C and leads to a reduction in conductivity. The results point to the nanotube regions acting as electronically isolated graphitic regions in ta-C. The refractive index in ta-C:(NT) is found to have the opposite dependency on wavelength to that of ta-C. It is proposed that the refractive index can be used as a signature for the presence of nanotubes and other large graphitic regions in ta-C.

Original languageEnglish
Pages (from-to)575-579
Number of pages5
JournalCarbon
Volume36
Issue number5-6
Publication statusPublished - 1998

Fingerprint

Carbon films
Amorphous carbon
Amorphous films
Electronic properties
Nanotubes
Refractive index
Nitrogen
Optical properties
Doping (additives)
Wavelength
Carbon

Keywords

  • A. Amorphous carbon
  • A. carbon nanotubes
  • D. electronic properties
  • D. optical properties

ASJC Scopus subject areas

  • Materials Chemistry

Cite this

Amaratunga, G. A. J., Chhowalla, M., Lim, K. G., Munindradasa, D. A. I., Pringle, S. D., Baxendale, M., ... Keyse, B. (1998). Electronic properties of tetrahedral amorphous carbon (ta-C) films containing nanotube regions. Carbon, 36(5-6), 575-579.

Electronic properties of tetrahedral amorphous carbon (ta-C) films containing nanotube regions. / Amaratunga, G. A J; Chhowalla, Manish; Lim, K. G.; Munindradasa, D. A I; Pringle, S. D.; Baxendale, M.; Alexandrou, I.; Kiely, C. J.; Keyse, B.

In: Carbon, Vol. 36, No. 5-6, 1998, p. 575-579.

Research output: Contribution to journalArticle

Amaratunga, GAJ, Chhowalla, M, Lim, KG, Munindradasa, DAI, Pringle, SD, Baxendale, M, Alexandrou, I, Kiely, CJ & Keyse, B 1998, 'Electronic properties of tetrahedral amorphous carbon (ta-C) films containing nanotube regions', Carbon, vol. 36, no. 5-6, pp. 575-579.
Amaratunga GAJ, Chhowalla M, Lim KG, Munindradasa DAI, Pringle SD, Baxendale M et al. Electronic properties of tetrahedral amorphous carbon (ta-C) films containing nanotube regions. Carbon. 1998;36(5-6):575-579.
Amaratunga, G. A J ; Chhowalla, Manish ; Lim, K. G. ; Munindradasa, D. A I ; Pringle, S. D. ; Baxendale, M. ; Alexandrou, I. ; Kiely, C. J. ; Keyse, B. / Electronic properties of tetrahedral amorphous carbon (ta-C) films containing nanotube regions. In: Carbon. 1998 ; Vol. 36, No. 5-6. pp. 575-579.
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