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 K-P Bohnen; H V Löhneysen; M M Kappes; P M Ajayan; M C Hersam; a C Ferrari; R Krupke; H V Löhneysen

doi:10.1021/nl9039795

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 K-P Bohnen, H V Löhneysen, M M Kappes, P M Ajayan, M C Hersam, a C Ferrari, R Krupke, H V Löhneysen

Research output: Contribution to journal › Article › peer-review

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 pi* 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 approximately 1.6 +/- approximately 0.2 eV could indicate radiative decay under emission or absorption of optical phonons, respectively.

Original language	English
Pages (from-to)	1589-94
Number of pages	1494
Journal	Nano Letters
Volume	10
Issue number	5
DOIs	https://doi.org/10.1021/nl9039795
Publication status	Published - 2010

Keywords

Carbon
Carbon: chemistry
Crystallization
Crystallization: methods
Electrochemistry
Electrochemistry: methods
Graphite
Graphite: chemistry
Luminescent Measurements
Luminescent Measurements: methods
Macromolecular Substances
Macromolecular Substances: chemistry
Materials Testing
Metals
Metals: chemistry
Molecular Conformation
Nanotechnology
Nanotechnology: methods
Nanotubes
Particle Size
Photons
Surface Properties
carbon nanotubes
electroluminescence
graphene
phonons

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10.1021/nl9039795

http://dx.doi.org/10.1021/nl9039795

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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. K.-P., Löhneysen, H. V., Kappes, M. M., Ajayan, P. M., Hersam, M. C., Ferrari, A. C., Krupke, R., & Löhneysen, H. V. (2010). Phonon-assisted electroluminescence from metallic carbon nanotubes and graphene. Nano Letters, 10(5), 1589-94. https://doi.org/10.1021/nl9039795

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title = "Phonon-assisted electroluminescence from metallic carbon nanotubes and graphene.",

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 pi* 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 approximately 1.6 +/- approximately 0.2 eV could indicate radiative decay under emission or absorption of optical phonons, respectively.",

keywords = "Carbon, Carbon: chemistry, Crystallization, Crystallization: methods, Electrochemistry, Electrochemistry: methods, Graphite, Graphite: chemistry, Luminescent Measurements, Luminescent Measurements: methods, Macromolecular Substances, Macromolecular Substances: chemistry, Materials Testing, Metals, Metals: chemistry, Molecular Conformation, Nanotechnology, Nanotechnology: methods, Nanotubes, Particle Size, Photons, Surface Properties, carbon nanotubes, electroluminescence, graphene, phonons",

author = "S Essig and Marquardt, {C W} and a Vijayaraghavan and M Ganzhorn and S Dehm and F Hennrich and F Ou and Green, {a a} and C Sciascia and F Bonaccorso and Bohnen, {K-P K-P} and L{\"o}hneysen, {H V} and Kappes, {M M} and Ajayan, {P M} and Hersam, {M C} and Ferrari, {a C} and R Krupke and L{\"o}hneysen, {H V}",

year = "2010",

doi = "10.1021/nl9039795",

language = "English",

volume = "10",

pages = "1589--94",

journal = "Nano Letters",

issn = "1530-6992",

publisher = "American Chemical Society",

number = "5",

}

Essig, S, Marquardt, CW, Vijayaraghavan, A, Ganzhorn, M, Dehm, S, Hennrich, F, Ou, F, Green, AA, Sciascia, C, Bonaccorso, F, Bohnen, K-PK-P, Löhneysen, HV, Kappes, MM, Ajayan, PM, Hersam, MC, Ferrari, AC, Krupke, R & Löhneysen, HV 2010, 'Phonon-assisted electroluminescence from metallic carbon nanotubes and graphene.', Nano Letters, vol. 10, no. 5, pp. 1589-94. https://doi.org/10.1021/nl9039795

TY - JOUR

T1 - Phonon-assisted electroluminescence from metallic carbon nanotubes and graphene.

AU - Essig, S

AU - Marquardt, C W

AU - Vijayaraghavan, a

AU - Ganzhorn, M

AU - Dehm, S

AU - Hennrich, F

AU - Ou, F

AU - Green, a a

AU - Sciascia, C

AU - Bonaccorso, F

AU - Bohnen, K-P K-P

AU - Löhneysen, H V

AU - Kappes, M M

AU - Ajayan, P M

AU - Hersam, M C

AU - Ferrari, a C

AU - Krupke, R

AU - Löhneysen, H V

PY - 2010

Y1 - 2010

N2 - 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 pi* 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 approximately 1.6 +/- approximately 0.2 eV could indicate radiative decay under emission or absorption of optical phonons, respectively.

AB - 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 pi* 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 approximately 1.6 +/- approximately 0.2 eV could indicate radiative decay under emission or absorption of optical phonons, respectively.

KW - Carbon

KW - Carbon: chemistry

KW - Crystallization

KW - Crystallization: methods

KW - Electrochemistry

KW - Electrochemistry: methods

KW - Graphite

KW - Graphite: chemistry

KW - Luminescent Measurements

KW - Luminescent Measurements: methods

KW - Macromolecular Substances

KW - Macromolecular Substances: chemistry

KW - Materials Testing

KW - Metals

KW - Metals: chemistry

KW - Molecular Conformation

KW - Nanotechnology

KW - Nanotechnology: methods

KW - Nanotubes

KW - Particle Size

KW - Photons

KW - Surface Properties

KW - carbon nanotubes

KW - electroluminescence

KW - graphene

KW - phonons

U2 - 10.1021/nl9039795

DO - 10.1021/nl9039795

M3 - Article

SN - 1530-6992

VL - 10

SP - 1589

EP - 1594

JO - Nano Letters

JF - Nano Letters

IS - 5

ER -

Phonon-assisted electroluminescence from metallic carbon nanotubes and graphene.

Abstract

Keywords

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