Plasma enables edge-to-center-oriented graphene nanoarrays on Si nanograss

Kumar, S., Levchenko, I., Cheng, Q.J., Shieh, J., & Ostrikov, K. (2012) Plasma enables edge-to-center-oriented graphene nanoarrays on Si nanograss. Applied Physics Letters, 100(5), 053115.

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Abstract

The formation of clearly separated vertical graphenenanosheets on silicon nanograss support is demonstrated. The plasma-enabled, two-stage mask-free process produced self-organized vertical graphenes of a few carbon layers (as confirmed by advanced microanalysis), prominently oriented in the substrate center–substrate edge direction. It is shown that the width of the alignment zone depends on the substrate conductivity, and thus the electric field in the vicinity of the growth surface is responsible for the graphene alignment. This finding is confirmed by the Monte Carlo simulations of the ion flux distribution in the silicon nanograss pattern.

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7 citations in Scopus
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9 citations in Web of Science®

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ID Code: 73634
Item Type: Journal Article
Refereed: Yes
DOI: 10.1063/1.3681782
ISSN: 0003-6951
Divisions: Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 09 Jul 2014 04:12
Last Modified: 10 Jul 2014 05:52

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