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Resistive switching effect in Ag-poly(ethylene glycol) nanofluids: novel avenue toward neuromorphic materials
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SYSNO ASEP 0584555 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Resistive switching effect in Ag-poly(ethylene glycol) nanofluids: novel avenue toward neuromorphic materials Author(s) Nikitin, D. (CZ)
Biliak, K. (CZ)
Pleskunov, P. (CZ)
Ali-Ogly, S. (CZ)
Červenková, V. (CZ)
Carstens, N. (DE)
Adejube, B. (DE)
Strunskus, T. (DE)
Černochová, Zulfiya (UMCH-V) RID, ORCID
Štěpánek, Petr (UMCH-V) RID, ORCID
Bajtošová, L. (CZ)
Cieslar, M. (CZ)
Protsak, M. (CZ)
Tosca, M. (CZ)
Lemke, J. (DE)
Faupel, F. (DE)
Biederman, H. (CZ)
Vahl, A. (DE)
Choukourov, A. (CZ)Article number 2310473 Source Title Advanced Functional Materials. - : Wiley - ISSN 1616-301X
Roč. 34, č. 12 (2024)Number of pages 10 s. Language eng - English Country DE - Germany Keywords conductive filament ; electrophoresis ; nanofluid Subject RIV BK - Fluid Dynamics OECD category Fluids and plasma physics (including surface physics) R&D Projects LM2023053 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Open access Institutional support UMCH-V - RVO:61389013 UT WOS 001116883700001 EID SCOPUS 85178954592 DOI https://doi.org/10.1002/adfm.202310473 Annotation Conventional computation techniques face challenges of deviations in Moore's law and the high-power consumption of data-centric computation tasks. Neuromorphic engineering attempts to overcome these issues by taking inspiration from neuron assemblies, ranging from distributed synaptic plasticity through orchestration of oscillator-like action potential toward avalanche dynamics. Although solid networks of nanoparticles (NPs) are proven to replicate fingerprints of criticality and brain-like dynamics, the aspect of dynamic spatial reconfigurations in the connectivity of networks remains unexplored. In this work, Ag/poly(ethylene glycol) (PEG) nanofluids are demonstrated as potential systems to mimic the spatio-temporal reconfiguration of network connections. The nanofluids are prepared by directly loading Ag NPs from the gas aggregation cluster source into liquid PEG. The NPs exhibit a negative zeta potential in PEG, if the potential difference is applied between two electrodes submerged in this nanofluid, the NPs migrate toward the anode, accumulate in its vicinity, and form a conductive path. Spikes of electric current passing through the path are detected, accompanied by resistive switching phenomena, similar to the random switching dynamics in solid NPs networks. The unique behavior of Ag/PEG nanofluids makes them promising for the realization of spatio-temporal reconfigurations in network topologies with the potential to transition to 3D. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2025 Electronic address https://onlinelibrary.wiley.com/doi/10.1002/adfm.202310473
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