Designing with Iontronic Logic Gates─From a Single Polyelectrolyte Diode to an Integrated Ionic Circuit

Barak Sabbagh, Noa Edri Fraiman, Alex Fish*, Gilad Yossifon*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

This article presents the implementation of on-chip iontronic circuits via small-scale integration of multiple ionic logic gates made of bipolar polyelectrolyte diodes. These ionic circuits are analogous to solid-state electronic circuits, with ions as the charge carriers instead of electrons/holes. We experimentally characterize the responses of a single fluidic diode made of a junction of oppositely charged polyelectrolytes (i.e., anion and cation exchange membranes), with a similar underlying mechanism as a solid-state p- and n-type junction. This served to carry out predesigned logical computations in various architectures by integrating multiple diode-based logic gates, where the electrical signal between the integrated gates was transmitted entirely through ions. The findings shed light on the limitations affecting the number of logic gates that can be integrated, the degradation of the electrical signal, their transient response, and the design rules that can improve the performance of iontronic circuits.

Original languageEnglish
Pages (from-to)23361-23370
Number of pages10
JournalACS Applied Materials and Interfaces
Volume15
Issue number19
DOIs
StatePublished - 17 May 2023

Funding

FundersFunder number
IIA
Israel Innovation Authority
MNFU
Technion Micro-Nano Fabrication Unit
Technion Russel-Berrie Nanotechnology Institute
Israel Science FoundationISF 1934/20
Russell Berrie Nanotechnology Institute, Technion-Israel Institute of Technology
Israel Innovation Authority

    Keywords

    • ionic circuitry
    • ionic diode
    • ionic logic gate
    • iontronic
    • polyelectrolyte

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