Domain size engineering of CVD graphene and its influence on physical properties

Title
Domain size engineering of CVD graphene and its influence on physical properties
Authors
김명종서태훈조현진Felisita Annisanti Mas'udTaegeon LeeHeesuk Rho
Keywords
CVD graphene; Domain Engineering; Property; graphene; chemical vapor deposition (CVD); grain boundary; electronic transport
Issue Date
2016-05
Publisher
Journal of physics D, applied physics
Citation
VOL 49, NO 20, 205504-1-205504-7
Abstract
An electrochemical polishing pre-treatment and atmospheric pressure annealing were performed on copper foils in order to obtain large graphene domain sizes by the chemical vapor deposition method. The sizes were confirmed through scanning electron microscopy, optical microscopy and Raman spectroscopy, among other additional characterizations. The larger domain size was expected to improve the quality of the graphene but, on the contrary, the sheet resistance of the samples was found to increase for the larger domain size. We conclude that although the domain size is larger, the sheet resistance of graphene is more affected by the quality of the graphene interdomain itself.
URI
http://pubs.kist.re.kr/handle/201004/59217
ISSN
00223727
Appears in Collections:
KIST Publication > Article
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