Multistep resistive switching of doped Cu-TCNQ nanocrystals

Tsunenobu Onodera, Fumika Matsushita, Reo Hirose, Hidetoshi Oikawa

Research output: Contribution to journalArticlepeer-review

Abstract

The resistive switching behavior of doped copper-(7,7,8,8-tetracyanoquinodimethane) (Cu-TCNQ) nanocrystals was different from that of bulk crystal. The doped Cu-TCNQ nanocrystals took the same crystal structure as bulk crystal (Cu:TCNQ = 1:1) in spite of the different composition ratio (Cu:TCNQ = 1.3:1). The excess amount of Cu resulted in the generation of TCNQ dianions (TCNQ2–) in Cu-TCNQ nanocrystals to keep the charge balance between TCNQ and excessive Cu, which led to multistep resistive switching behavior involving multistep charge transfer of TCNQ2–.

Original languageEnglish
JournalMolecular crystals and liquid crystals
DOIs
Publication statusAccepted/In press - 2021

Keywords

  • Charge-transfer complex
  • co-precipitation method
  • doping
  • nanocrystals
  • resistive switching

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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