Periodic surface functional group density on graphene via laserinduced substrate patterning at Si/SiO2 interface  

作　　者：Karolina A.Drogowska-Horna Inam Mirza Alvaro Rodriguez Petr Kovaricek Juraj Sladek Thibault J.-Y.Derrien Mindaugas Gedvilas Gediminas Raciukaitis Otakar Frank Nadezhda M.Bulgakova Martin Kalbac 

机构地区：[1]J.Heyrovsky Institute of Physical Chemistry of the Czech Academy of Sciences,Dolejskova 2155/3,18223 Prague,Czech Republic [2]HiLASE Centre,Institute of Physics of the Czech Academy of Sciences,Za Radnict 828,25241 Dolni Brezany,Czech Republic [3]Faculty of Nuclear Sciences and Physical Engineering,Czech Technical University in Prague,Brehova 78/7,11519,Czech Republic [4]Center for Physical Sciences and Technology,Savanoriu Ave.231,LT-023000,Vilnius,Lithuania

出　　处：《Nano Research》2020年第9期2332-2339,共8页纳米研究（英文版）

基　　金：The work was supported by project No.18-09055Y and 20-08633X awarded by Czech Science Foundation;The research of I.M.,J.S.,T.J.-Y.D.,and N.M.B.is financed by the European Regional Development Fund and the state budget of the Czech Republic(project BIATRI,No.CZ.02.1.01/0.0/0.0/15_003/0000445,project HiLASE CoE,No.CZ.02.1.01/0.0/0.0/15_006/0000674,programme NPU I,project No.LO1602);The work was further supported by European Regional Development Fund,OP RDE,Project:“Carbon allotropes with rationalized nanointerfaces and nanolinks for environmental and biomedical applications”(No.CZ.02.1.01/0.0/0.0/16_026/0008382);The authors also acknowledge the assistance provided by the Research Infrastructures NanoEnviCz(No.LM2015073)supported by the Ministry of Education;Youth and Sports of the Czech Republic and the project Pro-NanoEnviCz(No.CZ.02.1.01/0.0/0.0/16_013/0001821)supported by the Ministry of Education;Youth and Sports of the Czech Republic and the European Union-European Structural and Investments Funds in the frame of Operational Programme Research Development and Education.

摘　　要：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 pericxJic 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 UPSS 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.

关 键 词：two-dimensional(2D)materials graphene functionalization laser-induced periodic surface structures(LIPSS) periodic patterns Raman spectroscopy atomic force microscopy(AFM) 

分 类 号：TN24[电子电信—物理电子学] TQ127.11[化学工程—无机化工]