Long and thin graphene nanoribbons with atomically smooth edges can be fabricated in high yield by squashing carbon nanotubes.
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Toh, CT. Squashing carbon nanotubes into nanoribbons. Nat Electron 4, 633–634 (2021). https://doi.org/10.1038/s41928-021-00645-2
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DOI: https://doi.org/10.1038/s41928-021-00645-2
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