Cation discrimination in organic electrochemical ...
Document type :
Compte-rendu et recension critique d'ouvrage
Title :
Cation discrimination in organic electrochemical transistors by dual frequency sensing
Author(s) :
Pecqueur, Sebastien [Auteur]
Nanostructures, nanoComponents & Molecules - IEMN [NCM - IEMN]
Vuillaume, Dominique [Auteur]
Nanostructures, nanoComponents & Molecules - IEMN [NCM - IEMN]
Guérin, David [Auteur]
Nanostructures, nanoComponents & Molecules - IEMN [NCM - IEMN]
Alibart, Fabien [Auteur]
Nanostructures, nanoComponents & Molecules - IEMN [NCM - IEMN]
Nanostructures, nanoComponents & Molecules - IEMN [NCM - IEMN]
Vuillaume, Dominique [Auteur]

Nanostructures, nanoComponents & Molecules - IEMN [NCM - IEMN]
Guérin, David [Auteur]

Nanostructures, nanoComponents & Molecules - IEMN [NCM - IEMN]
Alibart, Fabien [Auteur]

Nanostructures, nanoComponents & Molecules - IEMN [NCM - IEMN]
Journal title :
Organic Electronics
Pages :
232-238
Publisher :
Elsevier
Publication date :
2018
ISSN :
1566-1199
HAL domain(s) :
Sciences de l'ingénieur [physics]/Electronique
Chimie/Autre
Chimie/Autre
English abstract : [en]
In this work, we propose a strategy to sense quantitatively and specifically cations, out of a single organic electrochemical transistor (OECT) device exposed to an electrolyte. From the systematic study of six different ...
Show more >In this work, we propose a strategy to sense quantitatively and specifically cations, out of a single organic electrochemical transistor (OECT) device exposed to an electrolyte. From the systematic study of six different chloride salts over 12 different concentrations, we demonstrate that the impedance of the OECT device is governed by either the channel dedoping at low frequency and the electrolyte gate capacitive coupling at high frequency. Specific cationic signatures, which originates from the different impact of the cations behavior on the poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) polymer and their conductivity in water, allow their discrimination at the same molar concentrations. Dynamic analysis of the device impedance at different frequencies could allow the identification of specific ionic flows which could be of a great use in bioelectronics to further interpret complex mechanisms in biological media such as in the brain.Show less >
Show more >In this work, we propose a strategy to sense quantitatively and specifically cations, out of a single organic electrochemical transistor (OECT) device exposed to an electrolyte. From the systematic study of six different chloride salts over 12 different concentrations, we demonstrate that the impedance of the OECT device is governed by either the channel dedoping at low frequency and the electrolyte gate capacitive coupling at high frequency. Specific cationic signatures, which originates from the different impact of the cations behavior on the poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) polymer and their conductivity in water, allow their discrimination at the same molar concentrations. Dynamic analysis of the device impedance at different frequencies could allow the identification of specific ionic flows which could be of a great use in bioelectronics to further interpret complex mechanisms in biological media such as in the brain.Show less >
Language :
Anglais
Popular science :
Non
Comment :
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