Abstract
Low temperature photoluminescence (PL) studies of individual single walled carbon nanotubes were performed. A continuous-flow, liquid-He cryostat was used to control the sample temperature within the range of 4 to 60 K. The PL was collected by a microscope objective and imaged onto the entrance slit of an imaging spectrometer. Ultranarrow peaks that exhibited blinking and spectral wandering were observed. The analysis of the PL spectral shapes and temperature dependences indicate that one source causing this heterogeneity may be unintentional doping, which can strongly modify the emission spectra of doped tubes through Fermi-edge singularity effect.
| Original language | English |
|---|---|
| Pages (from-to) | 27401 |
| Number of pages | 1 |
| Journal | Physical Review Letters |
| Volume | 93 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Jul 9 2004 |
Fingerprint
ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Low temperature emission spectra of individual single-walled carbon nanotubes : Multiplicity of subspecies within single-species nanotube ensembles. / Htoon, H.; O'Connell, M. J.; Cox, P. J.; Doorn, S. K.; Klimov, Victor I.
In: Physical Review Letters, Vol. 93, No. 2, 09.07.2004, p. 27401.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Low temperature emission spectra of individual single-walled carbon nanotubes
T2 - Multiplicity of subspecies within single-species nanotube ensembles
AU - Htoon, H.
AU - O'Connell, M. J.
AU - Cox, P. J.
AU - Doorn, S. K.
AU - Klimov, Victor I
PY - 2004/7/9
Y1 - 2004/7/9
N2 - Low temperature photoluminescence (PL) studies of individual single walled carbon nanotubes were performed. A continuous-flow, liquid-He cryostat was used to control the sample temperature within the range of 4 to 60 K. The PL was collected by a microscope objective and imaged onto the entrance slit of an imaging spectrometer. Ultranarrow peaks that exhibited blinking and spectral wandering were observed. The analysis of the PL spectral shapes and temperature dependences indicate that one source causing this heterogeneity may be unintentional doping, which can strongly modify the emission spectra of doped tubes through Fermi-edge singularity effect.
AB - Low temperature photoluminescence (PL) studies of individual single walled carbon nanotubes were performed. A continuous-flow, liquid-He cryostat was used to control the sample temperature within the range of 4 to 60 K. The PL was collected by a microscope objective and imaged onto the entrance slit of an imaging spectrometer. Ultranarrow peaks that exhibited blinking and spectral wandering were observed. The analysis of the PL spectral shapes and temperature dependences indicate that one source causing this heterogeneity may be unintentional doping, which can strongly modify the emission spectra of doped tubes through Fermi-edge singularity effect.
UR - http://www.scopus.com/inward/record.url?scp=4043075472&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=4043075472&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.93.027401
DO - 10.1103/PhysRevLett.93.027401
M3 - Article
C2 - 15323949
AN - SCOPUS:4043075472
VL - 93
SP - 27401
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 2
ER -