Large networks of vertical multi-layer graphenes with morphology-tunable magnetoresistance

Yue, Zengli, Levchenko, Igor, Kumar, Shailesh, Seo, Donghan, Wang, Xiaolin, Dou, Shixue, & Ostrikov, Kostya (2013) Large networks of vertical multi-layer graphenes with morphology-tunable magnetoresistance. Nanoscale, 5(19), pp. 9283-9288.

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Abstract

We report on the comparative study of magnetotransport properties of large-area vertical few-layer graphene networks with different morphologies, measured in a strong (up to 10 T) magnetic field over a wide temperature range. The petal-like and tree-like graphene networks grown by a plasma enhanced CVD process on a thin (500 nm) silicon oxide layer supported by a silicon wafer demonstrate a significant difference in the resistance-magnetic field dependencies at temperatures ranging from 2 to 200 K. This behaviour is explained in terms of the effect of electron scattering at ultra-long reactive edges and ultra-dense boundaries of the graphene nanowalls. Our results pave a way towards three-dimensional vertical graphene-based magnetoelectronic nanodevices with morphology-tuneable anisotropic magnetic properties. © The Royal Society of Chemistry 2013.

Impact and interest:

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13 citations in Web of Science®

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ID Code: 73518
Item Type: Journal Article
Refereed: Yes
Additional Information: Funding Details: DP1094073, ARC, Australian Research Council
Funding Details: FT100100303, ARC, Australian Research Council
Additional URLs:
DOI: 10.1039/c3nr00550j
ISSN: 2040-3364
Divisions: Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 08 Jul 2014 05:43
Last Modified: 09 Jul 2014 00:50

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