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Cited by 213

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Photoluminescence Imaging of Suspended Single-Walled Carbon Nanotubes

Lefebvre, Jacques, Austing, David G., Bond, Jeffery, Finnie, Paul·2006·Nano Letters

Abstract

Single-walled carbon nanotubes (SWNTs) suspended in air over trenches are imaged using their intrinsic near-infrared (NIR) photoluminescence (1.0-1.6 microm). Far-field emission from extended suspended lengths (approximately 50 microm) is both spatially and spectrally resolved, and SWNTs are classified based on the spatial uniformity of their emission intensity and emission wavelength. In a few cases, emission assigned to different (n,m) species is observed along the same suspended segment. Most SWNTs imaged on millisecond time scales show steady emission, but a few fluctuate and suffer a reduction of intensity. The quantum efficiency is dramatically higher than that in previous reports and is estimated at 7%, a value that is precise but subject to corrections because of assumptions about absorption and coherence.

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Metadata

Authors
Lefebvre, J., Austing, D. G., Bond, J., & Finnie, P.
Venue
Nano Letters
Published
2006-07-01
Volume
6
Issue
8
Pages
1603-1608
ISSN
  • 1530-6984 (ISSN-L)
  • 1530-6992
OpenAlex
W2066761614
Cited by
213
References
1
FWCI
13.24
Type
journal article
Language
en
Open access
closed

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