Controllability of threshold voltage in Ag-doped ZnO nanowire field effect transistors by adjusting the diameter of active channel nanowire

  • Kyoungwon Kim*
  • , Pulak Chandra Debnath
  • , Dong Hoon Park
  • , Sangsig Kim
  • , Sang Yeol Lee
  • *Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    38 Citations (Scopus)

    Abstract

    Silver doped zinc oxide nanowires (NWs) were synthesized on (0001) sapphire substrate by hot-walled pulsed laser deposition. Both enhancement mode and depletion mode NW field effect transistors (FETs) were fabricated. The shift of threshold voltage of silver doped zinc oxide NW FET was observed from 2.45 to -3.2 V depending on the diameter of NWs without any significant changes of the subthreshold swing, carrier concentration, and on/off ratios. We demonstrate that the transfer characteristics of silver doped zinc oxide NW FETs were closely related with the size of NW diameter and control the shift of threshold voltage.

    Original languageEnglish
    Article number083103
    JournalApplied Physics Letters
    Volume96
    Issue number8
    DOIs
    Publication statusPublished - 2010

    Bibliographical note

    Funding Information:
    This work was supported by the Nano-material Technology Development Program (M108KO010021–08K1501–02110) funded by the Center for Nanostructured Materials Technology (CNMT), South Korea, as well as by the System Integrated Semiconductor Base Technology Development Program funded from the Ministry of Knowledge and Economy (MKE), South Korea.

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

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