Hysteresis in single-walled carbon nanotube field--effect transistors: Experiments, a model, and implications

POSTER

Abstract

Hysteresis in carbon nanotube FETs is understood to be due to charge injection from the nanotube to its surrounding dielectric. We present a simple yet effective model to understand and analyze this phenomenon, wherein the charge injection and its subsequent redistribution has been modeled as a series RC circuit. A set of experiments validates this model, and also fits previously published data by other groups. Our work provides an in-depth picture of the parameters, which play a crucial role in modifying the transfer characteristics in nanotube FETs under different experimental conditions.

Authors

  • Swastik Kar

    • Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, Troy New York
    • Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, Troy, New York

  • S. Talapatra

    • Rensselaer Nanotechnology Center, Rensselaer Polytechnic Institute, Troy New York
    • Rensselaer Nanotechnology Center and Department of MS\&E, Rensselaer Polytechnic Institute, Troy NY.

  • A. Vijayaraghavan

    • Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, Troy New York

  • Caterina Soldano

    • Department of Physics, Applied Physics and Astronomy, Rensselaer Polytechnic Institute, Troy New York
    • Department of Physics, Applied Physics and Astronomy, Rensselaer Polytechnic Institute, Troy, New York

  • R. Vajtai

    • Rensselaer Nanotechnology Center, Rensselaer Polytechnic Institute, Troy New York

  • Saroj Nayak

    • Department of Physics, Applied Physics and Astronomy, Rensselaer Polytechnic Institute, Troy New York
    • Department of Physics, Applied Physics and Astronomy, Rensselaer Polytechnic Institute, Troy, New York

  • Omkaram Nalamasu

  • Pulickel M. Ajayan

    • Rensselaer Polytechnic Institute
    • Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, Troy New York
    • Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, Troy, New York