Impact of Electrolyte Incorporation in Anodized Niobium on Its Resistive Switching

Ivana Zrinski, Marvin Löfler, Janez Zavasnik, Claudia Cancellieri, Lars Jeurgens, Achim Walter Hassel, Andrei Ionut Mardare

Research output: Contribution to journalArticlepeer-review

Abstract

The aim of this study was to develop memristors based on Nb2O5 grown by a simple and inexpensive electrochemical anodization process. It was confirmed that the electrolyte selection plays a crucial role in resistive switching due to electrolyte species incorporation in oxide, thus influencing the formation of conductive filaments. Anodic memristors grown in phosphate buffer showed improved electrical characteristics, while those formed in citrated buffer exhibited excellent memory capabilities. The chemical composition of oxides was successfully determined using HAXPES, while their phase composition and crystal structure with conductive filaments was assessed by TEM at the nanoscale. Overall, understanding the switching mechanism leads towards a wide range of possible applications for Nb memristors either as selector devices or nonvolatile memories.
Original languageEnglish
Number of pages15
JournalNanomaterials
Volume12
DOIs
Publication statusPublished - 2022

Fields of science

  • 204 Chemical Process Engineering
  • 205016 Materials testing
  • 210006 Nanotechnology
  • 104014 Surface chemistry
  • 105113 Crystallography
  • 105116 Mineralogy
  • 204001 Inorganic chemical technology
  • 211104 Metallurgy
  • 104005 Electrochemistry
  • 104006 Solid state chemistry
  • 104017 Physical chemistry
  • 503013 Subject didactics of natural sciences

JKU Focus areas

  • Sustainable Development: Responsible Technologies and Management

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