Controlling Resistive Switching by Using an Optimized MoS2 Interfacial Layer and the Role of Top Electrodes on Ascorbic Acid Sensing in TaO x -Based RRAM

Langmuir : the ACS Journal of Surfaces and Colloids
Jiantai Timothy QiuSiddheswar Maikap

Abstract

Controlled resistive switching by using an optimized 2 nm thick MoS2 interfacial layer and the role of top electrodes (TEs) on ascorbic acid (AA) sensing in a TaO x-based resistive random access memory (RRAM) platform have been investigated for the first time. Both the high-resolution transmission electron microscopy (HRTEM) image and depth profile from energy dispersive X-ray spectroscopy confirm the presence of each layer in IrO x/Al2O3/TaO x/MoS2/TiN structure. The pristine device including the IrO x TE with the 2 nm thick interfacial layer shows the highest uniform rectifying direct current endurance >1000 cycles and a large rectifying ratio >3.2 × 104, and a high nonlinearity factor >700 is obtained, greater than that of Pt and Ru TEs. After formation, this IrO x device produces bipolar resistive switching characteristics and a long program/erase (P/E) endurance >107 cycles at a low operation current of <50 μA with small pulse width of 100 ns. The stressed device shows a reduced Al2O3/TaO x interface from the HRTEM image, which is owing to O2- ions' migration toward TiN electrode. By adjusting the RESET voltage and current level, consecutive >100 complementary resistive switching as well as long P/E endurance of >106 cycle...Continue Reading

References

Mar 3, 2001·Fresenius' Journal of Analytical Chemistry·E TurkusicV Amidzic
May 3, 2008·Nature·Dmitri B StrukovR Stanley Williams
Apr 20, 2010·Nature Materials·Eike LinnRainer Waser
Oct 11, 2013·Nanoscale Research Letters·Amit PrakashSiddheswar Maikap
Nov 13, 2013·ACS Nano·Elton J G Santos, Efthimios Kaxiras
Nov 11, 2014·Nature Materials·Alexander A BessonovMarc J A Bailey
May 13, 2015·Talanta·Danielle Cristhina Melo FerreiraMateus Borba Cardoso
Sep 29, 2015·Nature Nanotechnology·Anja WedigIlia Valov
Dec 15, 2015·Nano Letters·Peifu ChengYun Hang Hu
Apr 20, 2017·Langmuir : the ACS Journal of Surfaces and Colloids·Sk Ziaur RahamanPei-Hua Wang
Jun 6, 2017·Nature Communications·Can LiQiangfei Xia
Sep 1, 2017·Luminescence : the Journal of Biological and Chemical Luminescence·Liuying HeYueying Liu
Nov 14, 2018·Nature Nanotechnology·Shuang PiQiangfei Xia

❮ Previous
Next ❯

Citations

Aug 21, 2019·Micromachines·Lu Wang, Dianzhong Wen
Mar 29, 2020·Micromachines·Zongjie ShenCezhou Zhao
Apr 15, 2020·Science and Technology of Advanced Materials·Muhammad Muqeet RehmanNisar Ahmed

❮ Previous
Next ❯

Related Concepts

Related Feeds

Cell Migration

Cell migration is involved in a variety of physiological and pathological processes such as embryonic development, cancer metastasis, blood vessel formation and remoulding, tissue regeneration, immune surveillance and inflammation. Here is the latest research.