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Carbon Nanotube Field Effect Transistors with Suspended Graphene Gates.

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Author

  • Johannes Svensson
  • Niklas Lindahl
  • Hoyeol Yun
  • Miri Seo
  • Daniel Midtvedt
  • Yury Tarakanov
  • Niclas Lindvall
  • Oleg Nerushev
  • Jari Kinaret
  • Sangwook Lee
  • Eleanor E B Campbell
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Summary, in English

Novel field effect transistors with suspended graphene gates are demonstrated. By incorporating mechanical motion of the gate electrode, it is possible to improve the switching characteristics compared to a static gate, as shown by a combination of experimental measurements and numerical simulations. The mechanical motion of the graphene gate is confirmed by using atomic force microscopy to directly measure the electrostatic deflection. The device geometry investigated here can also provide a sensitive measurement technique for detecting high-frequency motion of suspended membranes as required, e.g., for mass sensing.

Publishing year

2011

Language

English

Pages

3569-3575

Publication/Series

Nano Letters

Volume

11

Document type

Journal article

Publisher

The American Chemical Society (ACS)

Topic

  • Nano Technology

Status

Published

Research group

  • Nano

ISBN/ISSN/Other

  • ISSN: 1530-6992