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 journalArticle

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 Sep 1

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Keywords

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

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Chemistry(all)
  • Materials Science(all)
  • Bioengineering
  • Biomedical Engineering

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