Exciton decay dynamics in individual carbon nanotubes at room temperature

Tobias Gokus, Achim Hartschuh, Hayk Harutyunyan, Maria Allegrini, Frank Hennrich, Manfred Kappes, Alexander A. Green, Mark C Hersam, Paulo T. Araújo, Ado Jorio

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

We studied the exciton decay dynamics of individual semiconducting single-walled carbon nanotubes at room temperature using time-resolved photoluminescence spectroscopy. The photoluminescence decay from nanotubes of the same (n,m) type follows a single exponential decay function, however, with lifetimes varying between about 1 and 40 ps from nanotube to nanotube. A correlation between broad photoluminescence spectra and short lifetimes was found and explained by defects promoting both nonradiative decay and vibronic dephasing.

Original languageEnglish
Article number153116
JournalApplied Physics Letters
Volume92
Issue number15
DOIs
Publication statusPublished - 2008

Fingerprint

carbon nanotubes
excitons
nanotubes
decay
room temperature
photoluminescence
life (durability)
defects
spectroscopy

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Gokus, T., Hartschuh, A., Harutyunyan, H., Allegrini, M., Hennrich, F., Kappes, M., ... Jorio, A. (2008). Exciton decay dynamics in individual carbon nanotubes at room temperature. Applied Physics Letters, 92(15), [153116]. https://doi.org/10.1063/1.2913009

Exciton decay dynamics in individual carbon nanotubes at room temperature. / Gokus, Tobias; Hartschuh, Achim; Harutyunyan, Hayk; Allegrini, Maria; Hennrich, Frank; Kappes, Manfred; Green, Alexander A.; Hersam, Mark C; Araújo, Paulo T.; Jorio, Ado.

In: Applied Physics Letters, Vol. 92, No. 15, 153116, 2008.

Research output: Contribution to journalArticle

Gokus, T, Hartschuh, A, Harutyunyan, H, Allegrini, M, Hennrich, F, Kappes, M, Green, AA, Hersam, MC, Araújo, PT & Jorio, A 2008, 'Exciton decay dynamics in individual carbon nanotubes at room temperature', Applied Physics Letters, vol. 92, no. 15, 153116. https://doi.org/10.1063/1.2913009
Gokus T, Hartschuh A, Harutyunyan H, Allegrini M, Hennrich F, Kappes M et al. Exciton decay dynamics in individual carbon nanotubes at room temperature. Applied Physics Letters. 2008;92(15). 153116. https://doi.org/10.1063/1.2913009
Gokus, Tobias ; Hartschuh, Achim ; Harutyunyan, Hayk ; Allegrini, Maria ; Hennrich, Frank ; Kappes, Manfred ; Green, Alexander A. ; Hersam, Mark C ; Araújo, Paulo T. ; Jorio, Ado. / Exciton decay dynamics in individual carbon nanotubes at room temperature. In: Applied Physics Letters. 2008 ; Vol. 92, No. 15.
@article{c199ff95e0ae407eaa099e75e3f69395,
title = "Exciton decay dynamics in individual carbon nanotubes at room temperature",
abstract = "We studied the exciton decay dynamics of individual semiconducting single-walled carbon nanotubes at room temperature using time-resolved photoluminescence spectroscopy. The photoluminescence decay from nanotubes of the same (n,m) type follows a single exponential decay function, however, with lifetimes varying between about 1 and 40 ps from nanotube to nanotube. A correlation between broad photoluminescence spectra and short lifetimes was found and explained by defects promoting both nonradiative decay and vibronic dephasing.",
author = "Tobias Gokus and Achim Hartschuh and Hayk Harutyunyan and Maria Allegrini and Frank Hennrich and Manfred Kappes and Green, {Alexander A.} and Hersam, {Mark C} and Ara{\'u}jo, {Paulo T.} and Ado Jorio",
year = "2008",
doi = "10.1063/1.2913009",
language = "English",
volume = "92",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics Publising LLC",
number = "15",

}

TY - JOUR

T1 - Exciton decay dynamics in individual carbon nanotubes at room temperature

AU - Gokus, Tobias

AU - Hartschuh, Achim

AU - Harutyunyan, Hayk

AU - Allegrini, Maria

AU - Hennrich, Frank

AU - Kappes, Manfred

AU - Green, Alexander A.

AU - Hersam, Mark C

AU - Araújo, Paulo T.

AU - Jorio, Ado

PY - 2008

Y1 - 2008

N2 - We studied the exciton decay dynamics of individual semiconducting single-walled carbon nanotubes at room temperature using time-resolved photoluminescence spectroscopy. The photoluminescence decay from nanotubes of the same (n,m) type follows a single exponential decay function, however, with lifetimes varying between about 1 and 40 ps from nanotube to nanotube. A correlation between broad photoluminescence spectra and short lifetimes was found and explained by defects promoting both nonradiative decay and vibronic dephasing.

AB - We studied the exciton decay dynamics of individual semiconducting single-walled carbon nanotubes at room temperature using time-resolved photoluminescence spectroscopy. The photoluminescence decay from nanotubes of the same (n,m) type follows a single exponential decay function, however, with lifetimes varying between about 1 and 40 ps from nanotube to nanotube. A correlation between broad photoluminescence spectra and short lifetimes was found and explained by defects promoting both nonradiative decay and vibronic dephasing.

UR - http://www.scopus.com/inward/record.url?scp=42349084994&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=42349084994&partnerID=8YFLogxK

U2 - 10.1063/1.2913009

DO - 10.1063/1.2913009

M3 - Article

AN - SCOPUS:42349084994

VL - 92

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 15

M1 - 153116

ER -