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Polarity Switching and Transient Responses in Single Nanotube Nanofluidic Transistors

Rong Fan, Min Yue, Rohit Karnik, Arun Majumdar, and Peidong Yang
Phys. Rev. Lett. 95, 086607 – Published 19 August 2005
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Abstract

We report the integration of inorganic nanotubes into metal-oxide-solution field effect transistors (FETs) which exhibit rapid field effect modulation of ionic conductance. Surface functionalization, analogous to doping in semiconductors, can switch the nanofluidic transistors from p-type to ambipolar and n-type field effect transistors. Transient study reveals the kinetics of field effect modulation is controlled by ion-exchange step. Nanofluidic FETs have potential implications in subfemtoliter analytical technology and large-scale nanofluidic integration.

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  • Received 1 May 2005

DOI:https://doi.org/10.1103/PhysRevLett.95.086607

©2005 American Physical Society

Authors & Affiliations

Rong Fan1, Min Yue2, Rohit Karnik2, Arun Majumdar2,3, and Peidong Yang1,3,*

  • 1Department of Chemistry, University of California, Berkeley, California 94720, USA
  • 2Department of Mechanical Engineering, University of California, Berkeley, California 94720, USA
  • 3Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA

  • *Electronic address: p_yang@berkeley.edu

See Also

Ions Feel the Field Effect

JR Minkel
Phys. Rev. Focus 16, 6 (2005)

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Vol. 95, Iss. 8 — 19 August 2005

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