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Memristors Using Solution-Based IGZO Nanoparticles

delete2017-11-29
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OA
AI
J
José Rosa
A
Asal Kiazadeh *
L
Lídia Santos
J
Jonas Deuermeier
R
Rodrigo Martins
H
Henrique L. Gomes
E
Elvira Fortunato
DOI:10.1021/acsomega.7b01167delete
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Abstract

Abstract

En 中文
Solution-based indium-gallium-zinc oldde (IGZO) nanoparticles deposited by spin coating have been investigated as a resistive switching layer in metal-insulator-metal structures for nonvolatile memory applications. Optimized devices show a bipolar resistive switching behavior, low programming voltages of +/- 1 V, on/off ratios higher than 10, high endurance, and a retention time of up to 104 s. The better performing devices were achieved with annealing temperatures of 200 degrees C and using asymmetric electrode materials of titanium and silver. The physics behind the improved switching properties of the devices is discussed in terms of the oxygen deficiency of IGZO. Temperature analysis of the conductance states revealed a nonmetallic filamentary conduction. The presented devices are potential candidates for the integration of memory functionality into low-cost System-on-Panel technology.
Keywords:
RESISTIVE SWITCHING MEMORY
THIN-FILM TRANSISTORS
PERFORMANCE IMPROVEMENT
HIGH-SPEED
MOBILITY
DEVICES
RERAM
FIELD
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Journal

ACS Omega cover
ACS Omega
IF:
4.3
Papers:
3.3W
Citations:
9.8W

Organization

U
Universidade Nova de Lisboa
Scholars:
1.3W
Papers: 1.1W
Citations: 1.5W
I
instituto de telecomunicacoes
Scholars:
808
Papers: 852
Citations: 0