Get access
Advanced Materials

Ambipolar Memory Devices Based on Reduced Graphene Oxide and Nanoparticles

Authors

  • Sung Myung,

    1. Department of Physics and Astronomy, Seoul National University Seoul 151-747 (Korea)
    2. Department of Biophysics and Chemical Biology, Seoul National University Seoul 151-747 (Korea)
    Search for more papers by this author
  • Jaesung Park,

    1. Center for Superfunctional Materials, Department of Chemistry Pohang University of Science and Technology Pohang 790-784 (Korea)
    Search for more papers by this author
  • Hyungwoo Lee,

    1. Department of Physics and Astronomy, Seoul National University Seoul 151-747 (Korea)
    2. Department of Biophysics and Chemical Biology, Seoul National University Seoul 151-747 (Korea)
    Search for more papers by this author
  • Kwang S. Kim,

    Corresponding author
    1. Center for Superfunctional Materials, Department of Chemistry Pohang University of Science and Technology Pohang 790-784 (Korea)
    • Center for Superfunctional Materials, Department of Chemistry Pohang University of Science and Technology Pohang 790-784 (Korea).
    Search for more papers by this author
  • Seunghun Hong

    Corresponding author
    1. Department of Physics and Astronomy, Seoul National University Seoul 151-747 (Korea)
    2. Department of Biophysics and Chemical Biology, Seoul National University Seoul 151-747 (Korea)
    • Department of Physics and Astronomy, Seoul National University Seoul 151-747 (Korea).
    Search for more papers by this author

Abstract

A directed-assembly method on the basis of graphene oxide (GO) pieces is developed, which allowed us to mass-produce a uniform array of graphene-based ambipolar memory devices using only conventional microfabrication facilities. Significantly, we successfully demonstrated that this device can be operated as both conventional conductivity-switching memory and new type-switching memory by adjusting the charge density on the nanoparticles.

original image
Get access to the full text of this article

Ancillary