Introducing Well-Defined Nanowrinkles in CVD Grown Graphene

Nanomaterials

Jana Vejpravova¹  Tim Verhagen¹  Martin Kalbac²  Barbara Pacakova² 

[1] Department of Condensed Matter Physics, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121 16 Prague 2, Czech Republic;J. Heyrovsky Institute of Physical Chemistry of the CAS, v.v.i., Dolejskova 2155/3, CZ-182 23 Prague 8, Czech Republic;

关键词: CVD graphene;    transfer;    ruga;    wrinkle;    ripple;    Raman spectroscopy;    AFM;   

DOI  :  10.3390/nano9030353

来源: DOAJ

【 摘 要 】

The control of graphene’s topography at the nanoscale level opens up the possibility to greatly improve the surface functionalization, change the doping level or create nanoscale reservoirs. However, the ability to control the modification of the topography of graphene on a wafer scale is still rather challenging. Here we present an approach to create well-defined nanowrinkles on a wafer scale using nitrocellulose as the polymer to transfer chemical vapor deposition grown graphene from the copper foil to a substrate. During the transfer process, the complex tertiary nitrocellulose structure is imprinted into the graphene area layer. When the graphene layer is put onto a substrate this will result in a well-defined nanowrinkle pattern, which can be subsequently further processed. Using atomic force and Raman microscopy, we characterized the generated nanowrinkles in graphene.

【 授权许可】

Unknown