@article{Drogowska-Horna2020, 
author = {Karolina A. Drogowska-Horna and Inam Mirza and Alvaro Rodriguez and Petr Kovaříček and Juraj Sládek and Thibault J.-Y. Derrien and Mindaugas Gedvilas and Gediminas Račiukaitis and Otakar Frank and Nadezhda M. Bulgakova and Martin Kalbáč},
title = {Periodic surface functional group density on graphene via laser-induced substrate patterning at Si/SiO2 interface},
year = {2020},
journal = {Nano Research},
volume = {13},
number = {9},
pages = {2332-2339},
keywords = {two-dimensional (2D) materials, Raman spectroscopy, atomic force microscopy (AFM), graphene functionalization, laser-induced periodic surface structures (LIPSS), periodic patterns},
url = {https://www.sciopen.com/article/10.1007/s12274-020-2852-3},
doi = {10.1007/s12274-020-2852-3},
abstract = {Controlling the spatial distribution of functional groups on two-dimensional (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.}
}