Modeling Scanning Electrochemical Cell Microscopy (SECCM) in Twisted Bilayer Graphene

We resolve spatial domains and flat band features on the twisted bilayer graphene surface by solving the steady state charge transport equation inside a 3D nanopipette volume. We find best resolution at magic angle twist, with 2-5nm nanopipette radii and -0.05 V applied voltage. We also report a 2D map of electrochemical current from scanning the nanopipette over the bilayer 2D surface.