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An Anomalous Enhancement of the A(g)(2) Mode in the Resonance Raman Spectra of C-60 Embedded in Single-Walled Carbon Nanotubes during Anodic Charging

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An Anomalous Enhancement of the A(g)(2) Mode in the Resonance Raman Spectra of C-60 Embedded in Single-Walled Carbon Nanotubes during Anodic Charging. / Kalbac, Martin; Zolyomi, Viktor; Rusznyak, Adam; Koltai, Janos; Kurti, Jeno; Kavan, Ladislav.

In: The Journal of Physical Chemistry C, Vol. 114, No. 6, 18.02.2010, p. 2505-2511.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

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Kalbac, M, Zolyomi, V, Rusznyak, A, Koltai, J, Kurti, J & Kavan, L 2010, 'An Anomalous Enhancement of the A(g)(2) Mode in the Resonance Raman Spectra of C-60 Embedded in Single-Walled Carbon Nanotubes during Anodic Charging', The Journal of Physical Chemistry C, vol. 114, no. 6, pp. 2505-2511. https://doi.org/10.1021/jp9103273

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Author

Kalbac, Martin ; Zolyomi, Viktor ; Rusznyak, Adam ; Koltai, Janos ; Kurti, Jeno ; Kavan, Ladislav. / An Anomalous Enhancement of the A(g)(2) Mode in the Resonance Raman Spectra of C-60 Embedded in Single-Walled Carbon Nanotubes during Anodic Charging. In: The Journal of Physical Chemistry C. 2010 ; Vol. 114, No. 6. pp. 2505-2511.

Bibtex

@article{7a2a6dffaf3c4335b1b91cfdd3757a72,
title = "An Anomalous Enhancement of the A(g)(2) Mode in the Resonance Raman Spectra of C-60 Embedded in Single-Walled Carbon Nanotubes during Anodic Charging",
abstract = "The effect of electrochemical charging on C60 fullerenes embedded in single-walled carbon nanotubes (peapods) has been studied. The Raman Ag(2) mode of C60 fullerene has been used as a probe. The spectra were measured using seven different laser excitation energies. For cathodic charging we observed bleaching of the Ag(2) mode independent of laser excitation energy. On the other hand for anodic charging the behavior of the Ag(2) mode was dependent on laser excitation energy. The intensity of the Ag(2) mode decreased only for the 1.16 eV laser excitation energy. In the case of other laser excitation energies (2.70, 2.60, 2.54, 2.41, 2.33, 2.18 eV) an increase of intensity has been observed. The dependence of the slope of the intensity on the electrode potential has been found to be a function of laser excitation energy. Observation of the upshift of the Ag(2) frequency supported by first principles calculations suggests that only a small amount of charge penetrates the nanotube, resulting in partial charge on the encapsulated fullerenes.",
author = "Martin Kalbac and Viktor Zolyomi and Adam Rusznyak and Janos Koltai and Jeno Kurti and Ladislav Kavan",
year = "2010",
month = feb,
day = "18",
doi = "10.1021/jp9103273",
language = "English",
volume = "114",
pages = "2505--2511",
journal = "The Journal of Physical Chemistry C",
issn = "1932-7447",
publisher = "American Chemical Society",
number = "6",

}

RIS

TY - JOUR

T1 - An Anomalous Enhancement of the A(g)(2) Mode in the Resonance Raman Spectra of C-60 Embedded in Single-Walled Carbon Nanotubes during Anodic Charging

AU - Kalbac, Martin

AU - Zolyomi, Viktor

AU - Rusznyak, Adam

AU - Koltai, Janos

AU - Kurti, Jeno

AU - Kavan, Ladislav

PY - 2010/2/18

Y1 - 2010/2/18

N2 - The effect of electrochemical charging on C60 fullerenes embedded in single-walled carbon nanotubes (peapods) has been studied. The Raman Ag(2) mode of C60 fullerene has been used as a probe. The spectra were measured using seven different laser excitation energies. For cathodic charging we observed bleaching of the Ag(2) mode independent of laser excitation energy. On the other hand for anodic charging the behavior of the Ag(2) mode was dependent on laser excitation energy. The intensity of the Ag(2) mode decreased only for the 1.16 eV laser excitation energy. In the case of other laser excitation energies (2.70, 2.60, 2.54, 2.41, 2.33, 2.18 eV) an increase of intensity has been observed. The dependence of the slope of the intensity on the electrode potential has been found to be a function of laser excitation energy. Observation of the upshift of the Ag(2) frequency supported by first principles calculations suggests that only a small amount of charge penetrates the nanotube, resulting in partial charge on the encapsulated fullerenes.

AB - The effect of electrochemical charging on C60 fullerenes embedded in single-walled carbon nanotubes (peapods) has been studied. The Raman Ag(2) mode of C60 fullerene has been used as a probe. The spectra were measured using seven different laser excitation energies. For cathodic charging we observed bleaching of the Ag(2) mode independent of laser excitation energy. On the other hand for anodic charging the behavior of the Ag(2) mode was dependent on laser excitation energy. The intensity of the Ag(2) mode decreased only for the 1.16 eV laser excitation energy. In the case of other laser excitation energies (2.70, 2.60, 2.54, 2.41, 2.33, 2.18 eV) an increase of intensity has been observed. The dependence of the slope of the intensity on the electrode potential has been found to be a function of laser excitation energy. Observation of the upshift of the Ag(2) frequency supported by first principles calculations suggests that only a small amount of charge penetrates the nanotube, resulting in partial charge on the encapsulated fullerenes.

U2 - 10.1021/jp9103273

DO - 10.1021/jp9103273

M3 - Journal article

VL - 114

SP - 2505

EP - 2511

JO - The Journal of Physical Chemistry C

JF - The Journal of Physical Chemistry C

SN - 1932-7447

IS - 6

ER -