Charge-induced electrochemical actuation of armchair carbon nanotube bundles

DOI DOI Web Site Web Site 被引用文献3件 参考文献44件

書誌事項

公開日
2017-07
資源種別
journal article
権利情報
  • https://www.elsevier.com/tdm/userlicense/1.0/
  • https://www.elsevier.com/legal/tdmrep-license
DOI
  • 10.1016/j.carbon.2017.03.036
  • 10.48550/arxiv.1612.02054
公開者
Elsevier BV

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説明

The effects of charge doping on the structural deformation and on the electronic structure of armchair single wall carbon nanotube (SWNT) bundles are investigated through first-principles calculations. In particular, we select a (6; 6) SWNT as an example and we calculate a mechanical deformation in the SWNT bundles as a function of gate voltage, which could serve as a basis of the electromechanical actuators in an artificial muscle. We find that the magnitudes of the actuation responses such as strain and stress of the (6; 6) SWNT bundle in the case of hole doping are substantially larger than those of electron doping. The (6; 6) SWNT bundle also exhibits a low-symmetry and opens an energy band gap of about 0.41 eV around the charge neutral condition, which allows a semiconductor-to-metal transition in the electron-doping regime when the relative shift of the Fermi energy goes up to 0.60 eV, above which the Young modulus increases.

収録刊行物

  • Carbon

    Carbon 118 278-284, 2017-07

    Elsevier BV

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