Hysteresis in Organic Electrochemical Transistors: Distinction of Capacitive and Inductive Effects
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INVESTIGACIONMetadatos
Título
Hysteresis in Organic Electrochemical Transistors: Distinction of Capacitive and Inductive EffectsAutoría
Fecha de publicación
2023-12-14Editor
American Chemical Society; American Chemical SocietyISSN
1948-7185Cita bibliográfica
Bisquert, J. Hysteresis in Organic Electrochemical Transistors: Distinction of Capacitive and Inductive Effects. J. Phys. Chem. Lett. 2023, 14, 49, 10951–10958. https://doi.org/10.1021/acs.jpclett.3c03062Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://pubs.acs.org/doi/full/10.1021/acs.jpclett.3c03062Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
Organic electrochemical transistors (OECTs) are effective devices for neuromorphic applications, bioelectronics, and sensors. Numerous reports in the literature show persistent dynamical hysteresis effects in the ... [+]
Organic electrochemical transistors (OECTs) are effective devices for neuromorphic applications, bioelectronics, and sensors. Numerous reports in the literature show persistent dynamical hysteresis effects in the current–voltage curves, attributed to the slow ionic charging of the channel under the applied gate voltage. Here we present a model that considers the dominant electrical and electrochemical operation aspects of the device based on a thermodynamic function of ion insertion. We identify the volume capacitance as the derivative of the thermodynamic function, associated with the chemical capacitance of the ionic–electronic film. The dynamical analysis shows that the system contains both capacitive and inductive hysteresis effects. The inductor response, which can be observed in impedance spectroscopy, is associated with ionic diffusion from the surface to fill the channel up to the equilibrium value. The model reveals the multiple dynamical features associated with specific kinetic relaxations that control the transient and impedance response of the OCET. [-]
Publicado en
Journal of Physical Chemistry Letters, 2023, vol. 14, no 49Entidad financiadora
European Research Council
Código del proyecto o subvención
info:eu-repo/grantAgreement/EC/HE/101097688
Título del proyecto o subvención
PeroSpiker: Perovskite Spiking Neurons for Intelligent Networks
Derechos de acceso
Copyright © 2023 The Author. Published by American Chemical Society. This publication is licensed under
CC-BY 4.0.
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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