Dendritic Organic Electrochemical Transistors Grown by Electropolymerization for 3D Neuromorphic Engineering.
bipolar electropolymerization
long-term memory
organic electrochemical transistors
short-term memory
structural plasticity
synaptic plasticity
Journal
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
ISSN: 2198-3844
Titre abrégé: Adv Sci (Weinh)
Pays: Germany
ID NLM: 101664569
Informations de publication
Date de publication:
12 2021
12 2021
Historique:
revised:
13
09
2021
received:
09
07
2021
pubmed:
31
10
2021
medline:
17
3
2022
entrez:
30
10
2021
Statut:
ppublish
Résumé
One of the major limitations of standard top-down technologies used in today's neuromorphic engineering is their inability to map the 3D nature of biological brains. Here, it is shown how bipolar electropolymerization can be used to engineer 3D networks of PEDOT:PSS dendritic fibers. By controlling the growth conditions of the electropolymerized material, it is investigated how dendritic fibers can reproduce structural plasticity by creating structures of controllable shape. Gradual topologies evolution is demonstrated in a multielectrode configuration. A detailed electrical characterization of the PEDOT:PSS dendrites is conducted through DC and impedance spectroscopy measurements and it is shown how organic electrochemical transistors (OECT) can be realized with these structures. These measurements reveal that quasi-static and transient response of OECTs can be adjusted by controlling dendrites' morphologies. The unique properties of organic dendrites are used to demonstrate short-term, long-term, and structural plasticity, which are essential features required for future neuromorphic hardware development.
Identifiants
pubmed: 34716682
doi: 10.1002/advs.202102973
pmc: PMC8693061
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
e2102973Subventions
Organisme : ERC
ID : #773228
Informations de copyright
© 2021 The Authors. Advanced Science published by Wiley-VCH GmbH.
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