Highly stable, solution-processed quaternary oxide thin film-based resistive switching random access memory devices via global and local stoichiometric manipulation strategy

Nanotechnology
Dongyun LeeJaekyun Kim

Abstract

Optimization and performance enhancement of a low-cost, solution-processed InGaZnO (IGZO) resistance random access memory (ReRAM) device using the manipulation of global and local oxygen vacancy (Vo) stoichiometry in metal oxide thin films was demonstrated. Control of the overall Ga composition within the IGZO thin film reduced the excessive formation of oxygen vacancies allowing for a reproducible resistance switching mechanism. Furthermore, sophisticated local control of stoichiometric Vo is achieved using a 5 nm Ni layer at the IGZO interface to serve as an oxygen capturing layer through the formation of NiOx, consequently facilitating the formation of conductive filaments (CFs) and preventing abrupt degradation of device performance. Additionally, reducing the cell dimension of the IGZO-based ReRAMs using a cross-bar electrode structure appeared to drastically improve their performances parameters, including operating voltage and resistance distribution due to the suppression of excessive CFs formation. The optimized ReRAM devices exhibited stable unipolar resistive switching behavior with an endurance of >200 cycles, a retention time of 104 s at 85 °C and an on/off ratio greater than about 102. Therefore, our findings addr...Continue Reading

References

Apr 3, 2001·Ultramicroscopy·R F KlieN D Browning
Nov 2, 2007·Nature Materials·Rainer Waser, Masakazu Aono
Jan 19, 2010·Nature Nanotechnology·Deok-Hwang KwonCheol Seong Hwang
Oct 21, 2011·ACS Applied Materials & Interfaces·Areum KimJooho Moon
Jun 17, 2014·Physical Chemistry Chemical Physics : PCCP·Danna QianYing Shirley Meng
May 12, 2015·Journal of Nanoscience and Nanotechnology·Yeong-Hyeon HwangWon-Ju Cho
Nov 7, 2018·Chemical Society Reviews·Shuang GaoRun-Wei Li
Nov 29, 2017·ACS Omega·Jose RosaElvira Fortunato

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Citations

Dec 15, 2020·Advanced Materials·Emanuel CarlosElvira Fortunato

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