Sustainable resistance switching performance from composite?type ReRAM device based on carbon nanotube@titania core?shell wires

Title
Sustainable resistance switching performance from composite?type ReRAM device based on carbon nanotube@titania core?shell wires
Authors
이상수김민성황지현김영진김태환전우진
Keywords
ReRAM; nanocomposite; carbon nanotube@titania core?shell wire; flexible memory
Issue Date
2020-11
Publisher
Scientific Reports
Citation
VOL 10, 18830
Abstract
A novel nanocomposite-based non-volatile resistance switching random access memory device introducing single-walled carbon nanotube (SWCNT)@TiO2 core?shell wires was proposed for flexible electronics. The SWCNT was de-bundled by ultrasonication with sodium dodecylbenzene sulfonate (SDBS), and then the TiO2 skin layer on the SWCNT surface was successfully introduced by adding benzyl alcohol as a weak surfactant. The nanocomposite resistance switching layer was composed of the SWCNT@TiO2 core?shell wires and poly(vinyl alcohol) (PVA) matrix by a simple spin-coating method. The device exhibited reproducible resistance switching performance with a remarkably narrow distribution of operating parameters (VSET and VRESET were 2.63?±?0.16 and 0.95?±?0.11 V, respectively) with a large RON/ROFF ratio of 105 for 200 consecutive switching cycles. Furthermore, the excellent resistance switching behavior in our device was maintained against mechanical stress up to 105 bending test. We believe that the nanocomposite memory device with SWCNT@TiO2 core?shell wires would be a critical asset to realize practical application for a flexible non-volatile memory field.
URI
http://pubs.kist.re.kr/handle/201004/72043
ISSN
2045-2322
Appears in Collections:
KIST Publication > Article
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