Covalent 2D‐Engineering of Graphene by Spatially Resolved Laser Writing/Reading/Erasing
Konstantin F. Edelthalhammer, Daniela Dasler, Lisa Jurkiewicz, Tamara Nagel, Sabrin Al‐Fogra, Frank Hauke, Andreas Hirsch
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.
Topics & Concepts
GrapheneCovalent bondRaman spectroscopyMaterials scienceMonolayerLaserSurface modificationNanotechnologyGraphene nanoribbonsCleavage (geology)ChemistryOpticsOrganic chemistryPhysicsComposite materialFracture (geology)Physical chemistryGraphene research and applicationsLaser-Ablation Synthesis of NanoparticlesNonlinear Optical Materials Studies