Photon-induced selective interaction between small-diameter metallic carbon nanotubes and triton X-100 |
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Authors: | Zhang Zhi-Bin Zhang Shi-Li |
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Affiliation: | School of Information and Communication Technology, Royal Institute of Technology, Electrum 229, SE-164 40 Kista, Sweden. |
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Abstract: | We report a highly selective chemical interaction between single-walled carbon nanotubes and Triton X-100 according to nanotubes' electronic structure and diameter. The interaction is induced by laser irradiation at power densities down to 10-2 microW/microm2 but with photon energies matching those for electronic transition in nanotubes. Our experimental results point to a photon-induced chemical interaction of Triton X-100 with metallic nanotubes below 1.1 nm in diameter and indicate the selectivity being dictated by Fermi electrons and enhanced by curvature-induced strain. |
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