Journal of the American Chemical Society, volume 132, issue 45, pages 15920-15923
Metal-Enhanced Fluorescence of Carbon Nanotubes
Guosong Hong
1
,
Scott M Tabakman
1
,
Kevin D Welsher
1
,
Hailiang Wang
1
,
Xinran Wang
1
,
Hongjie Dai
1
Publication type: Journal Article
Publication date: 2010-10-27
Q1
Q1
SJR: 5.489
CiteScore: 24.4
Impact factor: 14.4
ISSN: 00027863, 15205126
General Chemistry
Catalysis
Biochemistry
Colloid and Surface Chemistry
Abstract
The photoluminescence (PL) quantum yield of single-walled carbon nanotubes (SWNTs) is relatively low, with various quenching effects by metallic species reported in the literature. Here, we report the first case of metal enhanced fluorescence (MEF) of surfactant-coated carbon nanotubes on nanostructured gold substrates. The photoluminescence quantum yield of SWNTs is observed to be enhanced more than 10-fold. The dependence of fluorescence enhancement on metal-nanotube distance and on surface plasmon resonance (SPR) of the gold substrate for various SWNT chiralities is measured to reveal the mechanism of enhancement. Surfactant-coated SWNTs in direct contact with metal exhibit strong MEF without quenching, suggesting a small quenching distance for SWNTs on the order of the van der Waals distance, beyond which the intrinsically fast non-radiative decay rate in nanotubes is little enhanced by metal. The metal enhanced fluorescence of SWNTs is attributed to radiative lifetime shortening through resonance coupling of SWNT emission to the re-radiating dipolar plasmonic modes in the metal.
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Hong G. et al. Metal-Enhanced Fluorescence of Carbon Nanotubes // Journal of the American Chemical Society. 2010. Vol. 132. No. 45. pp. 15920-15923.
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Hong G., Tabakman S. M., Welsher K. D., Wang H., Wang X., Dai H. Metal-Enhanced Fluorescence of Carbon Nanotubes // Journal of the American Chemical Society. 2010. Vol. 132. No. 45. pp. 15920-15923.
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TY - JOUR
DO - 10.1021/ja1087997
UR - https://doi.org/10.1021/ja1087997
TI - Metal-Enhanced Fluorescence of Carbon Nanotubes
T2 - Journal of the American Chemical Society
AU - Hong, Guosong
AU - Tabakman, Scott M
AU - Welsher, Kevin D
AU - Wang, Hailiang
AU - Wang, Xinran
AU - Dai, Hongjie
PY - 2010
DA - 2010/10/27
PB - American Chemical Society (ACS)
SP - 15920-15923
IS - 45
VL - 132
SN - 0002-7863
SN - 1520-5126
ER -
Cite this
BibTex (up to 50 authors)
Copy
@article{2010_Hong,
author = {Guosong Hong and Scott M Tabakman and Kevin D Welsher and Hailiang Wang and Xinran Wang and Hongjie Dai},
title = {Metal-Enhanced Fluorescence of Carbon Nanotubes},
journal = {Journal of the American Chemical Society},
year = {2010},
volume = {132},
publisher = {American Chemical Society (ACS)},
month = {oct},
url = {https://doi.org/10.1021/ja1087997},
number = {45},
pages = {15920--15923},
doi = {10.1021/ja1087997}
}
Cite this
MLA
Copy
Hong, Guosong, et al. “Metal-Enhanced Fluorescence of Carbon Nanotubes.” Journal of the American Chemical Society, vol. 132, no. 45, Oct. 2010, pp. 15920-15923. https://doi.org/10.1021/ja1087997.