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.
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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|Item Type:||Journal Article|
|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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