Controlling exciton decay dynamics in semiconducting single-walled carbon nanotubes by surface acoustic waves

M. E. Regler, H. J. Krenner, A. A. Green, Mark C Hersam, A. Wixforth, A. Hartschuh

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We show that the photoluminescence intensity and decay dynamics of semiconducting single-walled carbon nanotube films can be remotely controlled by surface acoustic waves (SAW) launched on the piezoelectric substrate LiNbO 3. Time-resolved measurements in the picosecond regime reveal that photoluminescence quenching results from a decrease of the radiative recombination rate by up to 25% for the accessible SAW amplitudes. The SAW-induced piezoelectric field acts as a quasi-static perturbation that polarizes the luminescent exciton state reducing the oscillator strength of the radiative transition following a quadratic field dependence. Surface acoustic waves could be used for the remote and contact-free electrical control of high-speed electronic and optoelectronic nanotube-based devices.

Original languageEnglish
Pages (from-to)39-44
Number of pages6
JournalChemical Physics
Volume413
DOIs
Publication statusPublished - Feb 21 2013

Fingerprint

Single-walled carbon nanotubes (SWCN)
Surface waves
carbon nanotubes
excitons
Acoustic waves
acoustics
decay
Photoluminescence
photoluminescence
radiative recombination
Time measurement
Optoelectronic devices
oscillator strengths
Nanotubes
Quenching
nanotubes
quenching
time measurement
high speed
perturbation

Keywords

  • Exciton decay dynamics
  • Single-walled carbon nanotubes
  • Surface acoustic waves

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Physics and Astronomy(all)

Cite this

Controlling exciton decay dynamics in semiconducting single-walled carbon nanotubes by surface acoustic waves. / Regler, M. E.; Krenner, H. J.; Green, A. A.; Hersam, Mark C; Wixforth, A.; Hartschuh, A.

In: Chemical Physics, Vol. 413, 21.02.2013, p. 39-44.

Research output: Contribution to journalArticle

Regler, M. E. ; Krenner, H. J. ; Green, A. A. ; Hersam, Mark C ; Wixforth, A. ; Hartschuh, A. / Controlling exciton decay dynamics in semiconducting single-walled carbon nanotubes by surface acoustic waves. In: Chemical Physics. 2013 ; Vol. 413. pp. 39-44.
@article{21898f57283545d09484770687304cfd,
title = "Controlling exciton decay dynamics in semiconducting single-walled carbon nanotubes by surface acoustic waves",
abstract = "We show that the photoluminescence intensity and decay dynamics of semiconducting single-walled carbon nanotube films can be remotely controlled by surface acoustic waves (SAW) launched on the piezoelectric substrate LiNbO 3. Time-resolved measurements in the picosecond regime reveal that photoluminescence quenching results from a decrease of the radiative recombination rate by up to 25{\%} for the accessible SAW amplitudes. The SAW-induced piezoelectric field acts as a quasi-static perturbation that polarizes the luminescent exciton state reducing the oscillator strength of the radiative transition following a quadratic field dependence. Surface acoustic waves could be used for the remote and contact-free electrical control of high-speed electronic and optoelectronic nanotube-based devices.",
keywords = "Exciton decay dynamics, Single-walled carbon nanotubes, Surface acoustic waves",
author = "Regler, {M. E.} and Krenner, {H. J.} and Green, {A. A.} and Hersam, {Mark C} and A. Wixforth and A. Hartschuh",
year = "2013",
month = "2",
day = "21",
doi = "10.1016/j.chemphys.2012.10.014",
language = "English",
volume = "413",
pages = "39--44",
journal = "Chemical Physics",
issn = "0301-0104",
publisher = "Elsevier",

}

TY - JOUR

T1 - Controlling exciton decay dynamics in semiconducting single-walled carbon nanotubes by surface acoustic waves

AU - Regler, M. E.

AU - Krenner, H. J.

AU - Green, A. A.

AU - Hersam, Mark C

AU - Wixforth, A.

AU - Hartschuh, A.

PY - 2013/2/21

Y1 - 2013/2/21

N2 - We show that the photoluminescence intensity and decay dynamics of semiconducting single-walled carbon nanotube films can be remotely controlled by surface acoustic waves (SAW) launched on the piezoelectric substrate LiNbO 3. Time-resolved measurements in the picosecond regime reveal that photoluminescence quenching results from a decrease of the radiative recombination rate by up to 25% for the accessible SAW amplitudes. The SAW-induced piezoelectric field acts as a quasi-static perturbation that polarizes the luminescent exciton state reducing the oscillator strength of the radiative transition following a quadratic field dependence. Surface acoustic waves could be used for the remote and contact-free electrical control of high-speed electronic and optoelectronic nanotube-based devices.

AB - We show that the photoluminescence intensity and decay dynamics of semiconducting single-walled carbon nanotube films can be remotely controlled by surface acoustic waves (SAW) launched on the piezoelectric substrate LiNbO 3. Time-resolved measurements in the picosecond regime reveal that photoluminescence quenching results from a decrease of the radiative recombination rate by up to 25% for the accessible SAW amplitudes. The SAW-induced piezoelectric field acts as a quasi-static perturbation that polarizes the luminescent exciton state reducing the oscillator strength of the radiative transition following a quadratic field dependence. Surface acoustic waves could be used for the remote and contact-free electrical control of high-speed electronic and optoelectronic nanotube-based devices.

KW - Exciton decay dynamics

KW - Single-walled carbon nanotubes

KW - Surface acoustic waves

UR - http://www.scopus.com/inward/record.url?scp=84874939406&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84874939406&partnerID=8YFLogxK

U2 - 10.1016/j.chemphys.2012.10.014

DO - 10.1016/j.chemphys.2012.10.014

M3 - Article

VL - 413

SP - 39

EP - 44

JO - Chemical Physics

JF - Chemical Physics

SN - 0301-0104

ER -