Covalent 2D-Engineering of Graphene by Spatially Resolved Laser Writing/Reading/Erasing.

ABSTRACT: We report a facile and efficient method for the covalent 2D-patterning of monolayer graphene via laser irradiation. We utilized the photo-cleavage of dibenzoylperoxide (DBPO) and optimized the subsequent radical additions to non-activated graphene up to that level where controlled covalent 2D-patterning of graphene initiated by spatially resolved laser writing is possible. The covalent 2D-functionalization of graphene, which is monitored by scanning Raman microscopy (SRM) is completely reversible. This new concept enables write/read/erase control over the covalent chemical information stored on the graphene surface.

SUBMITTER: Edelthalhammer KF 

PROVIDER: S-EPMC7756404 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature