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Bicyclic-ring base doping induces n-type conduction in carbon nanotubes with outstanding thermal stability in air

Author

Listed:
  • Shohei Horike

    (Kobe University
    National Institute of Advanced Industrial Science and Technology (AIST)
    PRESTO, Japan Science and Technology Agency
    Kobe University)

  • Qingshuo Wei

    (National Institute of Advanced Industrial Science and Technology (AIST))

  • Kouki Akaike

    (National Institute of Advanced Industrial Science and Technology (AIST))

  • Kazuhiro Kirihara

    (National Institute of Advanced Industrial Science and Technology (AIST))

  • Masakazu Mukaida

    (National Institute of Advanced Industrial Science and Technology (AIST))

  • Yasuko Koshiba

    (Kobe University
    Kobe University)

  • Kenji Ishida

    (Kobe University
    Kobe University)

Abstract

The preparation of air and thermally stable n-type carbon nanotubes is desirable for their further implementation in electronic and energy devices that rely on both p- and n-type material. Here, a series of guanidine and amidine bases with bicyclic-ring structures are used as n-doping reagents. Aided by their rigid alkyl functionality and stable conjugate acid structure, these organic superbases can easily reduce carbon nanotubes. n-Type nanotubes doped with guanidine bases show excellent thermal stability in air, lasting for more than 6 months at 100 °C. As an example of energy device, a thermoelectric p/n junction module is constructed with a power output of ca. 4.7 μW from a temperature difference of 40 °C.

Suggested Citation

  • Shohei Horike & Qingshuo Wei & Kouki Akaike & Kazuhiro Kirihara & Masakazu Mukaida & Yasuko Koshiba & Kenji Ishida, 2022. "Bicyclic-ring base doping induces n-type conduction in carbon nanotubes with outstanding thermal stability in air," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-31179-6
    DOI: 10.1038/s41467-022-31179-6
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    References listed on IDEAS

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    Cited by:

    1. Hong Wang & Kuncai Li & Xin Hao & Jiahao Pan & Tiantian Zhuang & Xu Dai & Jing Wang & Bin Chen & Daotong Chong, 2024. "Capillary compression induced outstanding n-type thermoelectric power factor in CNT films towards intelligent temperature controller," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    2. Yuan-Meng Liu & Xiao-Lei Shi & Ting Wu & Hao Wu & Yuanqing Mao & Tianyi Cao & De-Zhuang Wang & Wei-Di Liu & Meng Li & Qingfeng Liu & Zhi-Gang Chen, 2024. "Boosting thermoelectric performance of single-walled carbon nanotubes-based films through rational triple treatments," Nature Communications, Nature, vol. 15(1), pages 1-12, December.

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