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No Access Submitted: 15 May 2012 Accepted: 28 July 2012 Published Online: 08 August 2012

  • Electromechanical properties of freestanding graphene functionalized with tin oxide (SnO2) nanoparticles

Appl. Phys. Lett. 101, 061601 (2012); https://doi.org/10.1063/1.4745780
L. Dong1,2, a), J. Hansen2, P. Xu3, M. L. Ackerman3, S. D. Barber3, J. K. Schoelz3, D. Qi3, and P. M. Thibado3, b)
more...View Affiliations
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  • L. Dong
  • J. Hansen
  • P. Xu
  • M. L. Ackerman
  • S. D. Barber
  • J. K. Schoelz
  • D. Qi
  • P. M. Thibado
ABSTRACT
Freestanding graphene membranes were functionalized with SnO2 nanoparticles. A detailed procedure providing uniform coverage and chemical synthesis is presented. Elemental composition was determined using scanning electron microscopy combined with energy dispersive x-ray analysis. A technique called electrostatic-manipulation scanning tunneling microscopy was used to probe the electromechanical properties of functionalized freestanding graphene samples. We found ten times larger movement perpendicular to the plane compared to pristine freestanding graphene and propose a nanoparticle encapsulation model.
L.D. acknowledges financial support by the Taishan Overseas Scholar Program, the National Natural Science Foundation of China (51172113), the Shandong Natural Science Foundation (JQ201118), the Research Corporation for Science Advancement, and the National Science Foundation (DMR-0821159). P.X. and P.T. are thankful for the financial support of the Office of Naval Research under Grant No. N00014-10-1-0181 and the National Science Foundation under Grant No. DMR-0855358.

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  1. © 2012 American Institute of Physics.

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