Multistep resistive switching of doped Cu-TCNQ nanocrystals

Tsunenobu Onodera; Fumika Matsushita; Reo Hirose; Hidetoshi Oikawa

doi:10.1080/15421406.2021.1946983

Multistep resistive switching of doped Cu-TCNQ nanocrystals

Tsunenobu Onodera, Fumika Matsushita, Reo Hirose, Hidetoshi Oikawa

Division of Organic- and Biomaterials Research

Research output: Contribution to journal › Article › peer-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 (TCNQ^2–) 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 TCNQ^2–.

Original language	English
Journal	Molecular crystals and liquid crystals
DOIs	https://doi.org/10.1080/15421406.2021.1946983
Publication status	Accepted/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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10.1080/15421406.2021.1946983

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title = "Multistep resistive switching of doped Cu-TCNQ nanocrystals",

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–.",

keywords = "Charge-transfer complex, co-precipitation method, doping, nanocrystals, resistive switching",

author = "Tsunenobu Onodera and Fumika Matsushita and Reo Hirose and Hidetoshi Oikawa",

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doi = "10.1080/15421406.2021.1946983",

language = "English",

journal = "Molecular Crystals and Liquid Crystals",

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T1 - Multistep resistive switching of doped Cu-TCNQ nanocrystals

AU - Onodera, Tsunenobu

AU - Matsushita, Fumika

AU - Hirose, Reo

AU - Oikawa, Hidetoshi

PY - 2021

Y1 - 2021

N2 - 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–.

AB - 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–.

KW - Charge-transfer complex

KW - co-precipitation method

KW - doping

KW - nanocrystals

KW - resistive switching

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DO - 10.1080/15421406.2021.1946983

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JF - Molecular Crystals and Liquid Crystals

SN - 1542-1406

ER -

Multistep resistive switching of doped Cu-TCNQ nanocrystals

Abstract

Keywords

ASJC Scopus subject areas

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