title: Covalent Reactions on Chemical Vapor Deposition Grown Graphene Studied by Surface-Enhanced Raman Spectroscopy.
abstract: Graphene is a material of unmatched properties and eminent potential in disciplines ranging from physics, to chemistry, to biology. Its advancement to applications with a specific function requires rational design and fine tuning of its properties, and covalent introduction of various substituents answers this requirement. We challenged the obstacle of non-trivial and harsh procedures for covalent functionalization of pristine graphene and developed a protocol for mild nucleophilic introduction of organic groups in the gas phase. The painstaking analysis problem of monolayered materials was addressed by using surface-enhanced Raman spectroscopy, which allowed us to monitor and characterize in detail the surface composition. These deliverables provide a toolbox for reactivity of fluorinated graphene under mild reaction conditions, providing structural freedom of the species to-be-grafted to the single-layer graphene.
authors.affiliation: Department of Low-Dimensional Systems, J. Heyrovsky Institute of Physical Chemistry of the ASCR, v.v.i., Dolejškova 2155/3, 182 23, Prague, Czech Republic.
authors.forename: Petr
authors.initials: P
authors.lastname: Kovaříček
authors.affiliation: Department of Low-Dimensional Systems, J. Heyrovsky Institute of Physical Chemistry of the ASCR, v.v.i., Dolejškova 2155/3, 182 23, Prague, Czech Republic.
authors.forename: Zdeněk
authors.initials: Z
authors.lastname: Bastl
authors.affiliation: Department of Low-Dimensional Systems, J. Heyrovsky Institute of Physical Chemistry of the ASCR, v.v.i., Dolejškova 2155/3, 182 23, Prague, Czech Republic.
authors.forename: Václav
authors.initials: V
authors.lastname: Valeš
authors.affiliation: Department of Low-Dimensional Systems, J. Heyrovsky Institute of Physical Chemistry of the ASCR, v.v.i., Dolejškova 2155/3, 182 23, Prague, Czech Republic. martin.kalbac@jh-inst.cas.cz.
authors.forename: Martin
authors.initials: M
authors.lastname: Kalbac
keywords: Raman spectroscopy; graphene; nanomaterials; nucleophillic substitution; surface chemistry