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Wafer-scale fabrication and growth dynamics of suspended graphene nanoribbon arrays

Author

Listed:
  • Hiroo Suzuki

    (Tohoku University)

  • Toshiro Kaneko

    (Tohoku University)

  • Yasushi Shibuta

    (The University of Tokyo)

  • Munekazu Ohno

    (Faculty of Engineering, Hokkaido University)

  • Yuki Maekawa

    (The University of Tokyo)

  • Toshiaki Kato

    (Tohoku University)

Abstract

Adding a mechanical degree of freedom to the electrical and optical properties of atomically thin materials can provide an excellent platform to investigate various optoelectrical physics and devices with mechanical motion interaction. The large scale fabrication of such atomically thin materials with suspended structures remains a challenge. Here we demonstrate the wafer-scale bottom–up synthesis of suspended graphene nanoribbon arrays (over 1,000,000 graphene nanoribbons in 2 × 2 cm2 substrate) with a very high yield (over 98%). Polarized Raman measurements reveal graphene nanoribbons in the array can have relatively uniform-edge structures with near zigzag orientation dominant. A promising growth model of suspended graphene nanoribbons is also established through a comprehensive study that combined experiments, molecular dynamics simulations and theoretical calculations with a phase-diagram analysis. We believe that our results can contribute to pushing the study of graphene nanoribbons into a new stage related to the optoelectrical physics and industrial applications.

Suggested Citation

  • Hiroo Suzuki & Toshiro Kaneko & Yasushi Shibuta & Munekazu Ohno & Yuki Maekawa & Toshiaki Kato, 2016. "Wafer-scale fabrication and growth dynamics of suspended graphene nanoribbon arrays," Nature Communications, Nature, vol. 7(1), pages 1-10, September.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms11797
    DOI: 10.1038/ncomms11797
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