Anomalous temperature dependence of the current in a metal-oxide-polymer resistive switching diode

Henrique L. Gomes, Paulo R F Rocha, Asal Kiazadeh, Dago M. De Leeuw, Stefan C J Meskers

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Metal-oxide polymer diodes exhibit non-volatile resistive switching. The current-voltage characteristics have been studied as a function of temperature. The low-conductance state follows a thermally activated behaviour. The high-conductance state shows a multistep-like behaviour and below 300K an enormous positive temperature coefficient. This anomalous behaviour contradicts the widely held view that switching is due to filaments that are formed reversibly by the diffusion of metal atoms. Instead, these findings together with small-signal impedance measurements indicate that creation and annihilation of filaments is controlled by filling of shallow traps localized in the oxide or at the oxide/polymer interface.

Original languageEnglish
Article number025103
JournalJournal of Physics D: Applied Physics
Volume44
Issue number2
DOIs
Publication statusPublished - 19 Jan 2011

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films

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