Domain-Dependent Surface Adhesion in Twisted Few-Layer Graphene: Platform for Moiré-Assisted Chemistry

Valerie Hsieh, Dorri Halbertal, Nathan R. Finney, Ziyan Zhu, Eli Gerber, Michele Pizzochero, Emine Kucukbenli, Gabriel R. Schleder, Mattia Angeli, Kenji Watanabe, Takashi Taniguchi, Eun Ah Kim, Efthimios Kaxiras, James Hone, Cory R. Dean, D. N. Basov

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Twisted van der Waals multilayers are widely regarded as a rich platform to access novel electronic phases thanks to the multiple degrees of freedom available for controlling their electronic and chemical properties. Here, we propose that the stacking domains that form naturally due to the relative twist between successive layers act as an additional ”knob” for controlling the behavior of these systems and report the emergence and engineering of stacking domain-dependent surface chemistry in twisted few-layer graphene. Using mid-infrared near-field optical microscopy and atomic force microscopy, we observe a selective adhesion of metallic nanoparticles and liquid water at the domains with rhombohedral stacking configurations of minimally twisted double bi- and trilayer graphene. Furthermore, we demonstrate that the manipulation of nanoparticles located at certain stacking domains can locally reconfigure the moiré superlattice in their vicinity at the micrometer scale. Our findings establish a new approach to controlling moiré-assisted chemistry and nanoengineering.

Original languageEnglish
Pages (from-to)3137-3143
Number of pages7
JournalNano Letters
Volume23
Issue number8
DOIs
StatePublished - 26 Apr 2023

Bibliographical note

Publisher Copyright:
© 2023 American Chemical Society

Keywords

  • nanoengineering
  • rhombohedral and Bernal stacking domains
  • surface chemistry
  • twisted graphene moiré

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