Electrodeposit formation in solid electrolytes

Michael Kozicki, Cynthia Ratnakumar, Maria Mitkova

Research output: Chapter in Book/Report/Conference proceedingConference contribution

18 Scopus citations


Devices based on polarity-dependent switching in solid electrolytes show great promise as next generation memory and perhaps even logic devices. These elements operate by the formation of robust but reversible electrodeposited conducting pathways which can be grown and dissolved at low voltage and current. Although such devices have been well characterized, little has been presented on the exact growth mechanism and nature of the conducting links themselves. In this paper we will show and discuss examples of electrodeposition within ternary silver-chalcogenide electrolyte device structures. The electrolyte was sectioned using focused ion beam milling and imaged with an in-situ scanning electron microscope to reveal the profile of the structure. A variety of Ag electrodeposits were imaged in over-written devices and it was clear that programming times in the order of a few seconds will create multiple deposits on the inert cathode, some of which appear to extend through to the anode. The electron beam itself was also used to reduce silver ions within the electrolyte to reveal how the electrodeposits might nucleate on the Ag-rich phases within the film.

Original languageEnglish (US)
Title of host publication7th Annual Non-Volatile Memory Technology Symposium, NVMTS
Number of pages5
StatePublished - 2006
Event7th Annual Non-Volatile Memory Technology Symposium, NVMTS 2006 - San Mateo, CA, United States
Duration: Nov 5 2006Nov 8 2006


Other7th Annual Non-Volatile Memory Technology Symposium, NVMTS 2006
Country/TerritoryUnited States
CitySan Mateo, CA


  • Electrodeposition
  • Electron microscopy
  • Focused ion beam
  • Non-volatile memory
  • Solid electrolyte

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering


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