Issue 14, 2022

A purely ionic voltage effect soft triode


We report on the construction and characterization of an ionic soft triode intended to be based on interfacial ion adsorption and redox oxidizer depletion. The soft triode was built in a simple manner with no need for sophisticated or expensive materials. It does not utilize the control of a semiconducting channel, but an electrolyte. In different electrical circuit configurations, it can show amplification or memory effects. The device had an electrical current amplification reaching 52 and memory effects in the electrical resistance lasting for up to 6 h. These values were achieved by tuning the electrode interface, the electrolyte and diffusion properties. They are promising for neuromorphic applications.

Graphical abstract: A purely ionic voltage effect soft triode

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Article information

Article type
06 Oct 2021
25 Jan 2022
First published
23 Mar 2022
This article is Open Access
Creative Commons BY license

Phys. Chem. Chem. Phys., 2022,24, 8311-8320

A purely ionic voltage effect soft triode

E. Mohamed, S. Josten and F. Marlow, Phys. Chem. Chem. Phys., 2022, 24, 8311 DOI: 10.1039/D1CP04581D

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