A polymer-electrolyte-based atomic switch

Shouming Wu, Tohru Tsuruoka, Kazuya Terabe, Tsuyoshi Hasegawa, Jonathan P. Hill, Katsuhiko Ariga, Masakazu Aono

Research output: Contribution to journalArticle

95 Citations (Scopus)

Abstract

Studies on a resistive switching memory based on a silver-ion-conductive solid polymer electrolyte (SPE) are reported. Simple Ag/SPE/Pt structures containing polyethylene oxide-silver perchlorate complexes exhibit bipolar resistive switching under bias voltage sweeping. The switching behavior depends strongly on the silver perchlorate concentration. From the results of thermal, transport, and electrochemical measurements, it is concluded that the observed switching originates from formation and dissolution of a silver metal filament inside the SPE film caused by electrochemical reactions. This is the first report of an electrochemical "atomic switch" realized using an organic material. The devices also show ON/OFF resistance ratios greater than 10 5, programming speeds higher than 1 μs, and retention times longer than 1 week. These results suggest that SPE-based electrochemical devices might be suitable for flexible switch and memory applications. An electrochemical 'atomic switch' device is realized using a silver-ion-conductive solid polymer electrolyte (SPE). Simple Ag/SPE/Pt structures containing PEO-AgClO4 complexes show bipolar resistive switching under bias voltage sweeping. This switching behavior results from formation and dissolution of an Ag metal filament in the SPE film by electrochemical reactions. The device also exhibits high performance in data retention and programming speed properties.

Original languageEnglish
Pages (from-to)93-99
Number of pages7
JournalAdvanced Functional Materials
Volume21
Issue number1
DOIs
Publication statusPublished - 2011 Jan 7
Externally publishedYes

Fingerprint

Electrolytes
Polymers
switches
Switches
electrolytes
Silver
polymers
silver
perchlorates
Bias voltage
Polyethylene oxides
programming
filaments
dissolving
Dissolution
Metals
Ions
silver oxides
Data storage equipment
electric potential

Keywords

  • atomic switch
  • ionic memory
  • nanoionics
  • nonvolatile resistive memory
  • organic electrochemical devices
  • solid polymer electrolytes

ASJC Scopus subject areas

  • Biomaterials
  • Electrochemistry
  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Wu, S., Tsuruoka, T., Terabe, K., Hasegawa, T., Hill, J. P., Ariga, K., & Aono, M. (2011). A polymer-electrolyte-based atomic switch. Advanced Functional Materials, 21(1), 93-99. https://doi.org/10.1002/adfm.201001520

A polymer-electrolyte-based atomic switch. / Wu, Shouming; Tsuruoka, Tohru; Terabe, Kazuya; Hasegawa, Tsuyoshi; Hill, Jonathan P.; Ariga, Katsuhiko; Aono, Masakazu.

In: Advanced Functional Materials, Vol. 21, No. 1, 07.01.2011, p. 93-99.

Research output: Contribution to journalArticle

Wu, S, Tsuruoka, T, Terabe, K, Hasegawa, T, Hill, JP, Ariga, K & Aono, M 2011, 'A polymer-electrolyte-based atomic switch', Advanced Functional Materials, vol. 21, no. 1, pp. 93-99. https://doi.org/10.1002/adfm.201001520
Wu S, Tsuruoka T, Terabe K, Hasegawa T, Hill JP, Ariga K et al. A polymer-electrolyte-based atomic switch. Advanced Functional Materials. 2011 Jan 7;21(1):93-99. https://doi.org/10.1002/adfm.201001520
Wu, Shouming ; Tsuruoka, Tohru ; Terabe, Kazuya ; Hasegawa, Tsuyoshi ; Hill, Jonathan P. ; Ariga, Katsuhiko ; Aono, Masakazu. / A polymer-electrolyte-based atomic switch. In: Advanced Functional Materials. 2011 ; Vol. 21, No. 1. pp. 93-99.
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