Influences of electrode materials on the resistive memory switching properties of ZnOxS1-x: Mn thin films

Yong Han, Isaac Chung, Sukhyung Park, Kyoungah Cho, Sangsig Kim

    Research output: Contribution to journalArticlepeer-review

    4 Citations (Scopus)

    Abstract

    In this study, we investigate the effect of top electrode (TE) materials on the resistive switching characteristics of TE/ZnOxS 1-x:Mn/Al devices. Al, Cu, Au, Ni, and ITO are used as the TE materials of our devices. Except for the ITO TE devices, all the devices show unipolar resistive switching and maintain memory characteristics even after 104 s. The ratios of high resistance state (HRS) and low resistance state (LRS) for the Al, Cu, Au, and Ni TE devices are 105, 10 5, 104, and 102, respectively. The low ratio of HRS and LRS of the Ni TE device is attributed to a high magnitude of current at HRS. The Cu/ZnOxS1-x:Mn/Al device shows the smallest distribution of set voltages. The ITO TE device exhibits bipolar resistive switching and suffers change in the resistance at HRS after 103 s. Considering the distribution of set voltages and the ratio of HRS and LRS, Cu is the most suitable TE material for the TE/ZnOxS1-x:Mn/Al devices.

    Original languageEnglish
    Pages (from-to)6208-6211
    Number of pages4
    JournalJournal of Nanoscience and Nanotechnology
    Volume13
    Issue number9
    DOIs
    Publication statusPublished - 2013 Sept

    Keywords

    • Bipolar switching
    • Resistive switching
    • Top electrode
    • Unipolar switching
    • ZnOS:Mn

    ASJC Scopus subject areas

    • Bioengineering
    • General Chemistry
    • Biomedical Engineering
    • General Materials Science
    • Condensed Matter Physics

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