High-Order Commensurate Zwitterionic Quinonoid Phase Induces a Nanoscale Dipole Lattice on Graphene - Archive ouverte HAL Access content directly
Journal Articles Journal of Physical Chemistry C Year : 2024

High-Order Commensurate Zwitterionic Quinonoid Phase Induces a Nanoscale Dipole Lattice on Graphene

Luis Sanhueza-Vega
  • Function : Author

Abstract

Since the introduction of hybrid van der Waals heterostructures (h-vdWHs) for device architecture development, many vertically staked organic two-dimensional materials have been investigated in order to control transport properties. This article introduces a novel h-vdWH that achieves periodic interaction by the development of a superlattice. We describe a complete investigation of the diphenyl-functionalized p-benzoquinonemonoimine zwitterion on highly oriented pyrolytic graphite and monolayer graphene using high-resolution scanning tunneling microscopy images and numerical simulations. The molecular phase on both substrates exhibits a structurally identical antiparallel dipole alignment in a head-to-tail dimer configuration. Density functional theory calculations reveal that this molecular adsorption induces a local dipole at the graphene interface due to the rearrangement of the electron density distribution.
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hal-04609427 , version 1 (12-06-2024)

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Gaelle Nassar, Diego Cortés-Arriagada, Luis Sanhueza-Vega, Périne Landois, Matthieu Paillet, et al.. High-Order Commensurate Zwitterionic Quinonoid Phase Induces a Nanoscale Dipole Lattice on Graphene. Journal of Physical Chemistry C, 2024, ⟨10.1021/acs.jpcc.4c01695⟩. ⟨hal-04609427⟩
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