INAL, Sahika; RIVNAY, Jonathan; HOFMANN, Anna I.; UGUZ, Ilke; MUMTAZ, Muhammad; KATSIGIANNOPOULOS, Dimitrios; BROCHON, Cyril; CLOUTET, Eric; HADZIIOANNOU, Georges; MALLIARAS, George G.

doi:10.1002/polb.23938

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INAL, Sahika
Ecole Natl Super Mines, Dept Bioelect

RIVNAY, Jonathan
Ecole Natl Super Mines, Dept Bioelect

HOFMANN, Anna I.
Laboratoire de Chimie des Polymères Organiques [LCPO]

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Journal of Polymer Science Part B: Polymer Physics. 2016, vol. 54, n° 2, p. 147-151, SI

Wiley

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Recent applications of organic electrochemical transistors (OECTs) in bioelectronics motivate the search for new materials with mixed electronic and ionic conductivity. We investigate the characteristics of a series of poly(3,4-ethylene-dioxythiophene) (PEDOT)-based materials with a new class of anionic polyelectrolytes used as dopants and stabilizers, replacing the traditionally used poly(styrene sulfonate) (PSS). We show that the backbone of the polyanion plays a major role in determining device performance, while its molecular weight and the counter ion used during PEDOT synthesis play a less important role. We find that transconductance increases with the degree of swelling of the film, consistent with enhanced ion transport. Finally, we identify a polymer that offers performance close to the state-of-the-art. This work highlights the importance of the polyanion phase as a means to control OECT performance.< Leer menos

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4-ETHYLENEDIOXYTHIOPHENE)/POLY(4-STYRENE-SULFONATE)

BIOELECTRONICS

electrochemical

mixed conductivity

PEDOT:PSS

polyanion

transistor

CONDUCTING POLYMERS

TRANSCONDUCTANCE

FILMS

POLY(3

ELECTRODES

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Organic Electrochemical Transistors Based on PEDOT with Different Anionic Polyelectrolyte Dopants

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