Do inner shells of double-walled carbon nanotubes fluoresce?
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.
Tsyboulski
Dmitri A
DA
Department of Chemistry and RE.Smalley Institute for Nanoscale Science and Technology, Rice University, Houston, Texas 77005, USA.
Hou
Ye
Y
Fakhri
Nikta
N
Ghosh
Saunab
S
Zhang
Ru
R
Bachilo
Sergei M
SM
Pasquali
Matteo
M
Chen
Liwei
L
Liu
Jie
J
Weisman
R Bruce
RB
D005453:Fluorescence; D008422:Materials Testing; D036103:Nanotechnology; D037742:Nanotubes, Carbon / Q000737:chemistry*; D010316:Particle Size; D013499:Surface Properties
D037742:Nanotubes, Carbon