Phonon-assisted electroluminescence from metallic carbon nanotubes and graphene

S. Essig, C. W. Marquardt, A. Vijayaraghavan, M. Ganzhorn, S. Dehm, F. Hennrich, F. Ou, A. A. Green, C. Sciascia, F. Bonaccorso, K. P. Bohnen, H. V. Löhneysen, M. M. Kappes, P. M. Ajayan, Mark C Hersam, A. C. Ferrari, R. Krupke

Research output: Contribution to journalArticle

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Abstract

We report on light emission from biased metallic single-wall carbon nanotube (SWNT), multiwall carbon nanotube (MWNT) and few-layer graphene (FLG) devices. SWNT devices were assembled from tubes with different diameters in the range 0.7-1.5 nm. They emit light in the visible spectrum with peaks at 1.4 and 1.8 eV. Similar peaks are observed for MWNT and FLG devices. We propose that this light emission is due to phonon-assisted radiative decay from populated φ* band states at the M point to the Fermi level at the K point. Since for most carbon nanotubes as well as for graphene the energy of unoccupied states at the M point is close to 1.6 eV, the observation of two emission peaks at ∼1.6 ∼0.2 eV could indicate radiative decay under emission or absorption of optical phonons, respectively.

Original languageEnglish
Pages (from-to)1589-1594
Number of pages6
JournalNano Letters
Volume10
Issue number5
DOIs
Publication statusPublished - May 12 2010

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Carbon Nanotubes
Graphite
Electroluminescence
electroluminescence
Graphene
Carbon nanotubes
graphene
carbon nanotubes
Light emission
light emission
decay
Phonons
visible spectrum
Fermi level
phonons
tubes

Keywords

  • Carbon nanotubes
  • Electroluminescence
  • Grapheme
  • Phonons

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanical Engineering

Cite this

Essig, S., Marquardt, C. W., Vijayaraghavan, A., Ganzhorn, M., Dehm, S., Hennrich, F., ... Krupke, R. (2010). Phonon-assisted electroluminescence from metallic carbon nanotubes and graphene. Nano Letters, 10(5), 1589-1594. https://doi.org/10.1021/nl9039795

Phonon-assisted electroluminescence from metallic carbon nanotubes and graphene. / Essig, S.; Marquardt, C. W.; Vijayaraghavan, A.; Ganzhorn, M.; Dehm, S.; Hennrich, F.; Ou, F.; Green, A. A.; Sciascia, C.; Bonaccorso, F.; Bohnen, K. P.; Löhneysen, H. V.; Kappes, M. M.; Ajayan, P. M.; Hersam, Mark C; Ferrari, A. C.; Krupke, R.

In: Nano Letters, Vol. 10, No. 5, 12.05.2010, p. 1589-1594.

Research output: Contribution to journalArticle

Essig, S, Marquardt, CW, Vijayaraghavan, A, Ganzhorn, M, Dehm, S, Hennrich, F, Ou, F, Green, AA, Sciascia, C, Bonaccorso, F, Bohnen, KP, Löhneysen, HV, Kappes, MM, Ajayan, PM, Hersam, MC, Ferrari, AC & Krupke, R 2010, 'Phonon-assisted electroluminescence from metallic carbon nanotubes and graphene', Nano Letters, vol. 10, no. 5, pp. 1589-1594. https://doi.org/10.1021/nl9039795
Essig S, Marquardt CW, Vijayaraghavan A, Ganzhorn M, Dehm S, Hennrich F et al. Phonon-assisted electroluminescence from metallic carbon nanotubes and graphene. Nano Letters. 2010 May 12;10(5):1589-1594. https://doi.org/10.1021/nl9039795
Essig, S. ; Marquardt, C. W. ; Vijayaraghavan, A. ; Ganzhorn, M. ; Dehm, S. ; Hennrich, F. ; Ou, F. ; Green, A. A. ; Sciascia, C. ; Bonaccorso, F. ; Bohnen, K. P. ; Löhneysen, H. V. ; Kappes, M. M. ; Ajayan, P. M. ; Hersam, Mark C ; Ferrari, A. C. ; Krupke, R. / Phonon-assisted electroluminescence from metallic carbon nanotubes and graphene. In: Nano Letters. 2010 ; Vol. 10, No. 5. pp. 1589-1594.
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AU - Bohnen, K. P.

AU - Löhneysen, H. V.

AU - Kappes, M. M.

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