Introducing Well-Defined Nanowrinkles in CVD Grown Graphene

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...

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Bibliographic Details
Main Authors: Tim Verhagen, Barbara Pacakova, Martin Kalbac, Jana Vejpravova
Format: Article
Language:English
Published: MDPI AG 2019-03-01
Series:Nanomaterials
Subjects:
Online Access:http://www.mdpi.com/2079-4991/9/3/353
Description
Summary: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.
ISSN:2079-4991