Nanotube Arrays: Sorting out Semiconducting Single-Walled Carbon Nanotube Arrays by Washing off Metallic Tubes Using SDS Aqueous Solution (Small 8/2013)

Authors

  • Yue Hu,

    1. Center for Nanochemistry, Beijing National Laboratory for Molecular Sciences, Key Laboratory for the Physics and Chemistry of Nanodevices, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China
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  • Yabin Chen,

    1. Center for Nanochemistry, Beijing National Laboratory for Molecular Sciences, Key Laboratory for the Physics and Chemistry of Nanodevices, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China
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  • Pan Li,

    1. Center for Nanochemistry, Beijing National Laboratory for Molecular Sciences, Key Laboratory for the Physics and Chemistry of Nanodevices, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China
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  • Jin Zhang

    Corresponding author
    1. Center for Nanochemistry, Beijing National Laboratory for Molecular Sciences, Key Laboratory for the Physics and Chemistry of Nanodevices, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China
    • Center for Nanochemistry, Beijing National Laboratory for Molecular Sciences, Key Laboratory for the Physics and Chemistry of Nanodevices, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China.
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Abstract

original image

S-SWNT (red tubes) arrays are sorted on a quartz surface by J. Zhang and co-workers, who explain on page 1306 how to wash off the m-SWNTs (green tubes) using SDS (yellow particles) aqueous solution. The SDS molecules selectively adsorb onto m-SWNTs. The SDS coating layer then minimizes the interactions between m-SWNTs and the quartz substrate, thus allowing the m-SWNTs to be easily washed off by the assistance of ultrasonication while the s-SWNT arrays remain securely on the substrate.

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