Journal
NANO LETTERS
Volume 9, Issue 9, Pages 3282-3289Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl901550r
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Funding
- NSF [CHE-0809020]
- Welch Foundation [C-0807, C-1668]
- Applied NanoFluorescence, LLC
- NSF Center for Biological and Environmental Nanotechnology [EEC-0647452]
- Unidym Inc
- Duke University GPNANO fellowship
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The reported fluorescence from inner shells of double-walled carbon nanotubes (DWCNTs) is an intriguing and potentially useful property. A combination of bulk and single-molecule methods was used to study the spectroscopy, chemical quenching, mechanical rigidity, abundance, density, and TEM images of the near-IR emitters in DWCNT samples. DWCNT inner shell fluorescence is found to be weaker than SWCNT fluorescence by a factor of at least 10 000. Observable near-IR emission from DWCNT samples is attributed to SWCNT impurities.
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