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Nano Research

Article Title

Periodic surface functional group density on graphene via laser-induced substrate patterning at Si/SiO2 interface

Authors

Karolina A. Drogowska-Horna, J. Heyrovsky Institute of Physical Chemistry of the Czech Academy of Sciences, Dolejkova 2155/3, 182 23 Prague, Czech Republic
Inam Mirza, HiLASE Centre, Institute of Physics of the Czech Academy of Sciences, Za Radnicí 828, 252 41 Dolní Beany, Czech Republic
Alvaro Rodriguez, J. Heyrovsky Institute of Physical Chemistry of the Czech Academy of Sciences, Dolejkova 2155/3, 182 23 Prague, Czech Republic
Petr Kovaíek, J. Heyrovsky Institute of Physical Chemistry of the Czech Academy of Sciences, Dolejkova 2155/3, 182 23 Prague, Czech Republic
Juraj Sládek, HiLASE Centre, Institute of Physics of the Czech Academy of Sciences, Za Radnicí 828, 252 41 Dolní Beany, Czech Republic Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Behová 78/7, 115 19, Czech Republic
Thibault J.-Y. Derrien, HiLASE Centre, Institute of Physics of the Czech Academy of Sciences, Za Radnicí 828, 252 41 Dolní Beany, Czech Republic
Mindaugas Gedvilas, Center for Physical Sciences and Technology, Savanoriu Ave. 231, LT-023000, Vilnius, Lithuania
Gediminas Raiukaitis, Center for Physical Sciences and Technology, Savanoriu Ave. 231, LT-023000, Vilnius, Lithuania
Otakar Frank, J. Heyrovsky Institute of Physical Chemistry of the Czech Academy of Sciences, Dolejkova 2155/3, 182 23 Prague, Czech Republic
Nadezhda M. Bulgakova, HiLASE Centre, Institute of Physics of the Czech Academy of Sciences, Za Radnicí 828, 252 41 Dolní Beany, Czech Republic
Martin Kalbá, J. Heyrovsky Institute of Physical Chemistry of the Czech Academy of Sciences, Dolejkova 2155/3, 182 23 Prague, Czech Republic

Keywords

2D materials, graphene functionalization, LIPSS, periodic patterns, Raman spectroscopy, atomic force microscopy (AFM)

Abstract

Controlling the spatial distribution of functional groups on 2D materials on a micrometer scale and below represents a fascinating opportunity to achieve anisotropic (opto)electronic properties of these materials. Periodic patterns of covalent functionalization can lead to periodic potentials in the monolayer; however, creating such superstructures is very challenging. Here, we describe an original approach to the periodic functionalization of graphene induced by substrate patterning using a pulsed laser. Laser-induced periodic surface structures (LIPSS) are produced on silicon wafers with thermally-grown oxide layers. The irradiation conditions for the formation of LIPSS confined at the SiO2/Si interface have been unravelled. LIPSS imprint their periodicity to the reactivity of the monolayer graphene placed on the substrate via modulation of its local doping level. This method is clean, straightforward and scalable with high spatial resolution.

Graphical Abstract

Publisher

Tsinghua University Press

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