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Title: Effects of annealing on the ripple texture and mechanical properties of suspended bilayer graphene
Authors: Annamalai, M.
Mathew, S. 
Jamali, M.
Zhan, D.
Palaniapan, M. 
Issue Date: 10-Apr-2013
Citation: Annamalai, M., Mathew, S., Jamali, M., Zhan, D., Palaniapan, M. (2013-04-10). Effects of annealing on the ripple texture and mechanical properties of suspended bilayer graphene. Journal of Physics D: Applied Physics 46 (14) : -. ScholarBank@NUS Repository.
Abstract: Periodic ripples of amplitude ∼15 nm were formed in suspended bilayer graphene after nanoindentation with incremental forces up to 600 nN. The structure was annealed at ∼620 K in high vacuum and the corresponding modifications in the mechanical properties and surface morphology were investigated. The pre-tension of the pristine sample was found to be 1.46 N m-1 and after annealing it was reduced to 0.72 N m-1. The nanometre-sized ripples induced by mechanical excitation were found to be flattened after annealing. Tailoring surface corrugations in bilayer graphene through nanoindentation and thermal engineering of these ripples thus provides an innovative fabrication route for flexible electronic devices and strain sensors. © 2013 IOP Publishing Ltd.
Source Title: Journal of Physics D: Applied Physics
ISSN: 00223727
DOI: 10.1088/0022-3727/46/14/145302
Appears in Collections:Staff Publications

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