Optical spectroscopic studies of photochemically oxidized single-walled carbon nanotubes.
We examined the time-dependent changes in the optical properties of single-walled carbon nanotubes which were consecutively oxidized by irradiation with vacuum ultraviolet light. It is demonstrated that photochemical oxidation is a mild and controllable method for manipulating the surface of nanotubes in order to convert their affinity from hydrophobic to hydrophilic by controlling the density of functional groups on their sidewalls without destroying their tubular morphology.
Lee
Sun Hyung
SH
Faculty of Engineering, Shinshu University, Wakasato, Nagano-shi 380-8553, Japan.
Jung
Yong Chae
YC
Kim
Yoong Ahm
YA
Muramatsu
Hiroyuki
H
Teshima
Katsuya
K
Oishi
Shuji
S
Endo
Morinobu
M
D003460:Crystallization / Q000379:methods*; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008968:Molecular Conformation; D036103:Nanotechnology / Q000379:methods*; D037742:Nanotubes, Carbon / Q000737:chemistry* / Q000528:radiation effects* / Q000648:ultrastructure; D010084:Oxidation-Reduction / Q000528:radiation effects; D010316:Particle Size; D010777:Photochemistry / Q000379:methods*; D013057:Spectrum Analysis; D013499:Surface Properties
D046911:Macromolecular Substances; D037742:Nanotubes, Carbon