Relaxation in GeSe Ovonic Threshold Switching Device

  • W. Zhang
  • , Z. Chai
  • , P. Freitas
  • , J. F. Zhang
  • , John Marsland

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

Abstract

Relaxation in ovonic threshold switching (OTS) selector devices is an important issue that affects the stability of switching threshold voltage. Experimental evidence of the filamentary-type switching process and the Vth relaxation mechanism associated with defect charging and discharging in GexSe1-x OTS are discussed in this paper. The area independence of conduction current at the ON and OFF states, the Weibull distribution of time-to-switch-on and -off (t-on/t-off), the Vth relaxation and its dependence on time, bias and temperature have been investigated. This provides strong support for the switching mechanism that the modulation of a conductive filament by the defect delocalzation and localization is responsible for volatile switching and relaxation in GexSe1-x OTS.

Original languageEnglish
Title of host publicationProceedings of 2022 IEEE 16th International Conference on Solid-State and Integrated Circuit Technology, ICSICT 2022
EditorsFan Ye, Ting-Ao Tang
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665469067
DOIs
StatePublished - 2022
Externally publishedYes
Event16th IEEE International Conference on Solid-State and Integrated Circuit Technology, ICSICT 2022 - Nanjing, China
Duration: 25 Oct 202228 Oct 2022

Publication series

NameProceedings of 2022 IEEE 16th International Conference on Solid-State and Integrated Circuit Technology, ICSICT 2022

Conference

Conference16th IEEE International Conference on Solid-State and Integrated Circuit Technology, ICSICT 2022
Country/TerritoryChina
CityNanjing
Period25/10/2228/10/22

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