1 research outputs found
Graphene-Induced Substrate Decoupling and Ideal Doping of a Self-Assembled Iron-phthalocyanine Single Layer
Iron-phthalocyanine molecules self-assemble on the moiré
pattern of graphene/Ir(111) as a flat and weakly interacting layer,
as determined by core-level photoemission and absorption spectroscopy.
The graphene buffer layer decouples the FePc two-dimensional structure
from the underlying metal; the electronic structure of the FePc molecular
macrocycles is preserved; and the Fe-L<sub>2,3</sub> edges present
narrower and slightly modified resonances at the FePc single-layer
coverage with respect to a thin film. The FePc layer induces a slight
electron doping to the Ir-supported graphene resulting in the Dirac
cone position expected for an ideal free-standing-like graphene layer
with the standard Fermi velocity