Multistep resistive switching of doped Cu-TCNQ nanocrystals

Tsunenobu Onodera, Fumika Matsushita, Reo Hirose, Hidetoshi Oikawa

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

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
Pages (from-to)33-39
Number of pages7
JournalMolecular crystals and liquid crystals
Volume729
Issue number1
DOIs
Publication statusPublished - 2021
Externally publishedYes

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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