Role of Cone-Shaped Contacts in VO2Nanoswitches

Kirill E. Kapoguzov, Sergey V. Mutilin, Victor Ya Prinz

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Abstract

Vanadium dioxide (VO2) is one of the most promising materials for new electronic devices and neuromorphic systems. Great interest in this material has arisen due to the unique reversible semiconductor-metal phase transition observed at 68°C. Recently, selective synthesis of nanosized VO2 single crystals on silicon nanostructures has been demonstrated and opens up the possibility of forming resistive switches with ultra-low energy consumption. This work is devoted to the design optimization of such switches. A new design of two-contact resistive switches based on VO2 nanocrystals with embedded cone-shaped needles was proposed and investigated. We simulated and analyzed the distributions of electric field strength, temperature, and current density inside a VO2 single crystal. It was shown that that the most energy-efficient geometry of the switches includes two cone-shaped nanocontacts embedded into the nanocrystal. The established optimum switch design is important for the formation of high sensitive switching elements for sensors and neuromorphic systems.

Original languageEnglish
Title of host publication2021 IEEE 22nd International Conference of Young Professionals in Electron Devices and Materials, EDM 2021 - Proceedings
PublisherIEEE Computer Society
Pages58-61
Number of pages4
ISBN (Electronic)9781665414982
DOIs
Publication statusPublished - 30 Jun 2021
Event22nd IEEE International Conference of Young Professionals in Electron Devices and Materials, EDM 2021 - Aya, Altai Region, Russian Federation
Duration: 30 Jun 20214 Jul 2021

Publication series

NameInternational Conference of Young Specialists on Micro/Nanotechnologies and Electron Devices, EDM
Volume2021-June
ISSN (Print)2325-4173
ISSN (Electronic)2325-419X

Conference

Conference22nd IEEE International Conference of Young Professionals in Electron Devices and Materials, EDM 2021
Country/TerritoryRussian Federation
CityAya, Altai Region
Period30.06.202104.07.2021

Keywords

  • finite element model
  • metal-insulator phase transition
  • neuromorphic system
  • resistive switches
  • Vanadium dioxide
  • VO2

OECD FOS+WOS

  • 2.02.IQ ENGINEERING, ELECTRICAL & ELECTRONIC
  • 1.03.UH PHYSICS, ATOMIC, MOLECULAR & CHEMICAL
  • 1.03.SY OPTICS

Fingerprint

Dive into the research topics of 'Role of Cone-Shaped Contacts in VO2Nanoswitches'. Together they form a unique fingerprint.

Cite this