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Selective dispersion of high purity semiconducting single-walled carbon nanotubes with regioregular poly(3-alkylthiophene)s

Author

Listed:
  • Hang Woo Lee

    (Department of Chemical Engineering)

  • Yeohoon Yoon

    (University of California)

  • Steve Park

    (Stanford University)

  • Joon Hak Oh

    (Department of Chemical Engineering
    Present address: School of Nano-Bioscience and Chemical Engineering, Ulsan National Institute of Science and Technology, Ulsan 689-798, Korea.)

  • Sanghyun Hong

    (Department of Chemical Engineering)

  • Luckshitha S. Liyanage

    (Stanford University)

  • Huiliang Wang

    (Stanford University)

  • Satoshi Morishita

    (Department of Chemical Engineering)

  • Nishant Patil

    (Stanford University)

  • Young Jun Park

    (Frontier Research Lab, Samsung Advanced Institute of Technology)

  • Jong Jin Park

    (Frontier Research Lab, Samsung Advanced Institute of Technology)

  • Andrew Spakowitz

    (Department of Chemical Engineering)

  • Giulia Galli

    (University of California
    University of California)

  • Francois Gygi

    (University of California)

  • Philip H.-S. Wong

    (Stanford University)

  • Jeffrey B.-H. Tok

    (Department of Chemical Engineering)

  • Jong Min Kim

    (Frontier Research Lab, Samsung Advanced Institute of Technology)

  • Zhenan Bao

    (Department of Chemical Engineering)

Abstract

Conjugated polymers, such as polyfluorene and poly(phenylene vinylene), have been used to selectively disperse semiconducting single-walled carbon nanotubes (sc-SWNTs), but these polymers have limited applications in transistors and solar cells. Regioregular poly(3-alkylthiophene)s (rr-P3ATs) are the most widely used materials for organic electronics and have been observed to wrap around SWNTs. However, no sorting of sc-SWNTs has been achieved before. Here we report the application of rr-P3ATs to sort sc-SWNTs. Through rational selection of polymers, solvent and temperature, we achieved highly selective dispersion of sc-SWNTs. Our approach enables direct film preparation after a simple centrifugation step. Using the sorted sc-SWNTs, we fabricate high-performance SWNT network transistors with observed charge-carrier mobility as high as 12 cm2 V−1 s−1 and on/off ratio of >106. Our method offers a facile and a scalable route for separating sc-SWNTs and fabrication of electronic devices.

Suggested Citation

  • Hang Woo Lee & Yeohoon Yoon & Steve Park & Joon Hak Oh & Sanghyun Hong & Luckshitha S. Liyanage & Huiliang Wang & Satoshi Morishita & Nishant Patil & Young Jun Park & Jong Jin Park & Andrew Spakowitz , 2011. "Selective dispersion of high purity semiconducting single-walled carbon nanotubes with regioregular poly(3-alkylthiophene)s," Nature Communications, Nature, vol. 2(1), pages 1-8, September.
  • Handle: RePEc:nat:natcom:v:2:y:2011:i:1:d:10.1038_ncomms1545
    DOI: 10.1038/ncomms1545
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