Chemical Modification of Multiwalled Carbon Nanotubes by Vacuum Ultraviolet Irradiation Dry Process

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概要

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• We developed a fast dry oxidation process for chemical vapor deposition (CVD) grown multiwalled carbon nanotubes (MWNTs) using short-wavelength UV [vacuum ultraviolet (VUV) light ($\lambda_{\text{max}}=172$ nm)] irradiation. We introduced carboxyl groups as many as 3% of carbon atoms within 1 min at room temperature using this process. MWNTs with the carboxyl groups were analyzed by attenuated total reflection (ATR) Fourier transform infrared absorption spectroscopy (FT-IR), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). The attachment of the carboxyl groups was further confirmed by reacting ferritin molecules with the MWNTs. The developed dry process with a high reaction rate is a powerful tool for the applications of carbon nanotubes in nanoelectronics.

• 2006-04-30

著者

• Awano Yuji

  Fujitsu Lab. Ltd. Kanagawa Jpn

• Takei Fumio

  Fujitsu Laboratories Ltd.

• KAWABATA Akio

  Nanotechnology Research Center, Fujitsu Laboratories Ltd.

• Kondo Daiyu

  Nanotechnology Research Center Fujitsu Laboratories Ltd.

• Nihei Mizuhisa

  Nanotechnology Research Center Fujitsu Laboratories Ltd.

• Asano Koji

  Fujitsu Laboratories Ltd.

• Takei Fumio

  Fujitsu Laboratories Ltd., 10-1 Morinosato-wakamiya, Atsugi, Kanagawa 243-0197, Japan

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