Method of selectively eliminating metallic carbon nanotubes, semiconducting carbon nanotubes and preparation method thereof using the same
AssigneesSamsung Electronics Co., Ltd., Peking University
InventorsJin ZHANG, Yi ZHANG, Yongyi ZHANG, Zhongfan LIU
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Abstract
Metallic carbon nanotubes (“CNTs”) may be selectively eliminated and semiconducting CNTs may be prepared using light-irradiation. The light provided by the light-irradiation may have a wavelength of about 180 nm to about 11 μm. Further, the light may have an intensity of about 30 mW/cm2 to about 300 mW/cm2. The light-irradiation may be simple and controllable, and may not require any special instruments except a light source.
Claims20
A method for selectively eliminating metallic carbon nanotubes comprising:
- irradiating carbon nanotubes with light having a wavelength of about 180 nm to about 11 μm and an intensity of about 30 mW/cm2 to about 300 mW/cm2.
A method for preparing semiconducting carbon nanotubes comprising:
- providing carbon nanotubes comprising metallic carbon nanotubes and semiconducting carbon nanotubes;
- and
- obtaining semiconducting carbon nanotubes by selectively eliminating the metallic carbon nanotubes through irradiating the carbon nanotubes with light having a wavelength of about 180 nm to about 11 μm and an intensity of about 30 mW/cm2 to about 300 mW/cm2.
Semiconducting carbon nanotubes being obtainable by selectively eliminating metallic carbon nanotubes from the carbon nanotubes comprising metallic carbon nanotubes and semiconducting carbon nanotubes through irradiating the carbon nanotubes with light having a wavelength of about 180 nm to about 11 μm and an intensity of about 30 mW/cm2 to about 300 mW/cm2.
Dependencies are inferred from the claim text.