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 nanotub...

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Published inNanotechnology Vol. 20; no. 10; p. 105708
Main Authors Lee, Sun Hyung, Jung, Yong Chae, Kim, Yoong Ahm, Muramatsu, Hiroyuki, Teshima, Katsuya, Oishi, Shuji, Endo, Morinobu
Format Journal Article
LanguageEnglish
Published England IOP Publishing 11.03.2009
Subjects
Crystallization - methods
Macromolecular Substances - chemistry
Materials Testing
Molecular Conformation
Nanotechnology - methods
Nanotubes, Carbon - chemistry
Nanotubes, Carbon - radiation effects
Nanotubes, Carbon - ultrastructure
Oxidation-Reduction - radiation effects
Particle Size
Photochemistry - methods
Spectrum Analysis
Surface Properties
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Summary: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.
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SourceType-Scholarly Journals-1
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ISSN:0957-4484
1361-6528
DOI:10.1088/0957-4484/20/10/105708