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 language | English |
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Pages (from-to) | 33-39 |
Number of pages | 7 |
Journal | Molecular crystals and liquid crystals |
Volume | 729 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2021 |
Externally published | Yes |
Keywords
- Charge-transfer complex
- co-precipitation method
- doping
- nanocrystals
- resistive switching
ASJC Scopus subject areas
- Chemistry(all)
- Materials Science(all)
- Condensed Matter Physics