Resistive switching effect for ZnO hybrid memory with metal-oxide nanocrystals

Dong Uk Lee, Eun Kyu Kim, Won Ju Cho, Young Ho Kim, Hyunsik Im

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

ZnO memory device with SnO 2 nanocrystals embedded in a biphenyl-tertracarboxylic dianhydride-phenylen diamine polyimide layer was fabricated, and its electrical properties were evaluated. The complementary resistive switching effects with a current bistability appeared during voltage sweeping in the range of ± 4 V and ± 5 V, respectively. This switching effect of current-voltage may be originated from a resistance fluctuation due to the charge trapping into SnO 2 nanocrystals. In the bipolar resistance switching behavior, the ratio of high-resistance state (HRS) and low-resistance state (LRS) currents was about 4.4 × 10 4 at 1 V. The data retention of LRS/HRS currents was maintained about 2.2 × 10 3 after 10 3 s.

Original languageEnglish
Pages (from-to)98-101
Number of pages4
JournalThin Solid Films
Volume521
DOIs
StatePublished - 30 Oct 2012

Keywords

  • Hybrid
  • Nano-crystals
  • Nonvolatile memory
  • Polyimide
  • Resistance random access memory
  • SnO

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