Periodic surface functional group density on graphene via laser-induced substrate patterning at Si/SiO(2)interface

0531783 - ÚFCH JH 2021 RIV CN eng J - Journal Article
Drogowska-Horna, Karolina A. - Mirza, M. Inam - Rodriguez, Álvaro - Kovaříček, Petr - Sládek, Juraj - Derrien, Thibault - Gedvilas, M. - Raciukaitis, G. - Frank, Otakar - Bulgakova, Nadezhda M. - Kalbáč, Martin
Periodic surface functional group density on graphene via laser-induced substrate patterning at Si/SiO(2)interface.
Nano Research. Roč. 13, č. 9 (2020), s. 2332-2339. ISSN 1998-0124. E-ISSN 1998-0000
R&D Projects: GA ČR(CZ) GJ18-09055Y; GA ČR(CZ) GX20-08633X; GA MŠMT LO1602; GA MŠMT(CZ) LM2015073; GA MŠMT EF15_003/0000445; GA MŠMT EF15_006/0000674; GA MŠMT(CZ) EF16_013/0001821; GA MŠMT EF16_026/0008382
Grant - others:OP VVV - BIATRI(XE) CZ.02.1.01/0.0/0.0/15_003/0000445; OP VVV - HiLASE-CoE(XE) CZ.02.1.01/0.0/0.0/15_006/0000674; Ministerstvo školství, mládeže a tělovýchovy - GA MŠk(CZ) CZ.02.1.01/0.0/0.0/16_026/0008382; GA MŠk(CZ) CZ.02.1.01/0.0/0.0/16_013/0001821
Institutional support: RVO:61388955 ; RVO:68378271
Keywords : covalent functionalization * raman-spectroscopy * layer graphene * chemistry * defects * substituent * reactivity * deposition * films * 2D materials * graphene functionalization * lipss * periodic patterns * Raman spectroscopy * atomic force microscopy (AFM)
OECD category: Physical chemistry; Optics (including laser optics and quantum optics) (FZU-D)
Impact factor: 8.897, year: 2020
Method of publishing: Limited access

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.
Permanent Link: http://hdl.handle.net/11104/0310400