Visualizing the local optical response of semiconducting carbon nanotubes to DNA-wrapping

Huihong Qian, Paulo T. Araujo, Carsten Georgi, Tobias Gokus, Nicolai Hartmann, Alexander A. Green, Ado Jorio, Mark C Hersam, Lukas Novotny, Achim Hartschuh

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

We studied the local optical response of semiconducting single-walled carbon nanotubes to wrapping by DNA segments using high resolution tip-enhanced near-field microscopy. Photoluminescence (PL) near-field images of single nanotubes reveal large DNA-wrapping-induced red shifts of the exciton energy that are two times higher than indicated by spatially averaging confocal microscopy. Near-field PL spectra taken along nanotubes feature two distinct PL bands resulting from DNA-wrapped and unwrapped nanotube segments. The transition between the two energy levels occurs on a length scale smaller than our spatial resolution of about 15 nm.

Original languageEnglish
Pages (from-to)2706-2711
Number of pages6
JournalNano Letters
Volume8
Issue number9
DOIs
Publication statusPublished - Sep 2008

Fingerprint

Carbon Nanotubes
Nanotubes
Carbon nanotubes
nanotubes
near fields
Photoluminescence
DNA
deoxyribonucleic acid
carbon nanotubes
photoluminescence
microscopy
Confocal microscopy
Single-walled carbon nanotubes (SWCN)
Electron transitions
Excitons
red shift
Electron energy levels
Microscopic examination
spatial resolution
energy levels

ASJC Scopus subject areas

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

Cite this

Qian, H., Araujo, P. T., Georgi, C., Gokus, T., Hartmann, N., Green, A. A., ... Hartschuh, A. (2008). Visualizing the local optical response of semiconducting carbon nanotubes to DNA-wrapping. Nano Letters, 8(9), 2706-2711. https://doi.org/10.1021/nl801038t

Visualizing the local optical response of semiconducting carbon nanotubes to DNA-wrapping. / Qian, Huihong; Araujo, Paulo T.; Georgi, Carsten; Gokus, Tobias; Hartmann, Nicolai; Green, Alexander A.; Jorio, Ado; Hersam, Mark C; Novotny, Lukas; Hartschuh, Achim.

In: Nano Letters, Vol. 8, No. 9, 09.2008, p. 2706-2711.

Research output: Contribution to journalArticle

Qian, H, Araujo, PT, Georgi, C, Gokus, T, Hartmann, N, Green, AA, Jorio, A, Hersam, MC, Novotny, L & Hartschuh, A 2008, 'Visualizing the local optical response of semiconducting carbon nanotubes to DNA-wrapping', Nano Letters, vol. 8, no. 9, pp. 2706-2711. https://doi.org/10.1021/nl801038t
Qian H, Araujo PT, Georgi C, Gokus T, Hartmann N, Green AA et al. Visualizing the local optical response of semiconducting carbon nanotubes to DNA-wrapping. Nano Letters. 2008 Sep;8(9):2706-2711. https://doi.org/10.1021/nl801038t
Qian, Huihong ; Araujo, Paulo T. ; Georgi, Carsten ; Gokus, Tobias ; Hartmann, Nicolai ; Green, Alexander A. ; Jorio, Ado ; Hersam, Mark C ; Novotny, Lukas ; Hartschuh, Achim. / Visualizing the local optical response of semiconducting carbon nanotubes to DNA-wrapping. In: Nano Letters. 2008 ; Vol. 8, No. 9. pp. 2706-2711.
@article{3be84fe63aa248d0bfcf751f3a94c2ff,
title = "Visualizing the local optical response of semiconducting carbon nanotubes to DNA-wrapping",
abstract = "We studied the local optical response of semiconducting single-walled carbon nanotubes to wrapping by DNA segments using high resolution tip-enhanced near-field microscopy. Photoluminescence (PL) near-field images of single nanotubes reveal large DNA-wrapping-induced red shifts of the exciton energy that are two times higher than indicated by spatially averaging confocal microscopy. Near-field PL spectra taken along nanotubes feature two distinct PL bands resulting from DNA-wrapped and unwrapped nanotube segments. The transition between the two energy levels occurs on a length scale smaller than our spatial resolution of about 15 nm.",
author = "Huihong Qian and Araujo, {Paulo T.} and Carsten Georgi and Tobias Gokus and Nicolai Hartmann and Green, {Alexander A.} and Ado Jorio and Hersam, {Mark C} and Lukas Novotny and Achim Hartschuh",
year = "2008",
month = "9",
doi = "10.1021/nl801038t",
language = "English",
volume = "8",
pages = "2706--2711",
journal = "Nano Letters",
issn = "1530-6984",
publisher = "American Chemical Society",
number = "9",

}

TY - JOUR

T1 - Visualizing the local optical response of semiconducting carbon nanotubes to DNA-wrapping

AU - Qian, Huihong

AU - Araujo, Paulo T.

AU - Georgi, Carsten

AU - Gokus, Tobias

AU - Hartmann, Nicolai

AU - Green, Alexander A.

AU - Jorio, Ado

AU - Hersam, Mark C

AU - Novotny, Lukas

AU - Hartschuh, Achim

PY - 2008/9

Y1 - 2008/9

N2 - We studied the local optical response of semiconducting single-walled carbon nanotubes to wrapping by DNA segments using high resolution tip-enhanced near-field microscopy. Photoluminescence (PL) near-field images of single nanotubes reveal large DNA-wrapping-induced red shifts of the exciton energy that are two times higher than indicated by spatially averaging confocal microscopy. Near-field PL spectra taken along nanotubes feature two distinct PL bands resulting from DNA-wrapped and unwrapped nanotube segments. The transition between the two energy levels occurs on a length scale smaller than our spatial resolution of about 15 nm.

AB - We studied the local optical response of semiconducting single-walled carbon nanotubes to wrapping by DNA segments using high resolution tip-enhanced near-field microscopy. Photoluminescence (PL) near-field images of single nanotubes reveal large DNA-wrapping-induced red shifts of the exciton energy that are two times higher than indicated by spatially averaging confocal microscopy. Near-field PL spectra taken along nanotubes feature two distinct PL bands resulting from DNA-wrapped and unwrapped nanotube segments. The transition between the two energy levels occurs on a length scale smaller than our spatial resolution of about 15 nm.

UR - http://www.scopus.com/inward/record.url?scp=54549105892&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=54549105892&partnerID=8YFLogxK

U2 - 10.1021/nl801038t

DO - 10.1021/nl801038t

M3 - Article

VL - 8

SP - 2706

EP - 2711

JO - Nano Letters

JF - Nano Letters

SN - 1530-6984

IS - 9

ER -