Ion Channels and Electroosmosis in Porous Geopolymers: A Novel Category of Low‐Cost Memristors

Mahmudul Alam Shakib; Zhaolin Gao; Sebastiano Candamano; Caterina Lamuta

doi:10.1002/adfm.202306535

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Ion Channels and Electroosmosis in Porous Geopolymers: A Novel Category of Low‐Cost Memristors

Journal article

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Ion Channels and Electroosmosis in Porous Geopolymers: A Novel Category of Low‐Cost Memristors

Mahmudul Alam Shakib, Zhaolin Gao, Sebastiano Candamano and Caterina Lamuta

Advanced functional materials, Vol.33(43), 2306535

10/18/2023

DOI: 10.1002/adfm.202306535

Appears in UI Libraries Support Open Access

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Abstract

Abstract Memristors are electric components that emulate the memory and computational properties of biological synapses by remembering the current that flows through them. Here, for the first time, the memristive properties of geopolymers, inexpensive ceramic materials manufactured at room temperature from alkaline activation of amorphous aluminosilicate precursors, are presented. It is demonstrated that geopolymers present all the fingerprints of memristors, and a physics‐based model is proposed, which demonstrates that electroosmosis in the bulk geopolymer pores induces ion channels that foster change in the overall conductance of the bulk material, contributing to the observed memristive behavior. This model opens the door to a new category of porous electroosmosis‐based bulk memristors. Synaptic functions such as short‐term plasticity and long‐term plasticity, as well as endurance and retention capabilities are also demonstrated. The reported findings pave the way to the use of geopolymers for low‐cost applications in neuromorphic computing.

artificial synapse

electro-osmosis

geopolymers

memristors

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Details

Title: Subtitle: Ion Channels and Electroosmosis in Porous Geopolymers: A Novel Category of Low‐Cost Memristors
Creators: Mahmudul Alam Shakib - University of Iowa
Zhaolin Gao - University of Iowa
Sebastiano Candamano - University of Calabria
Caterina Lamuta - University of Iowa
Resource Type: Journal article
Publication Details: Advanced functional materials, Vol.33(43), 2306535
DOI: 10.1002/adfm.202306535
ISSN: 1616-301X
eISSN: 1616-3028
Publisher: Wiley
Grant note: Air Force Office of Scientific Research. Grant Number: FA9550-21-1-0416 Office of Naval Research Young Investigator Program. Grant Number: N00014-23-1-2116 Defense Advanced Research Projects Agency Young Faculty Award. Grant Number: W911NF2110344-0011679424
Language: English
Electronic publication date: 08/30/2023
Date published: 10/18/2023
Academic Unit: Mechanical Engineering
Record Identifier: 9984464478602771

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