This perspective deals with the coupling of ionic and electronic transport in organic electronic devices, focusing on electrolyte-gated transistors. These include electrolyte-gated organic field-effect transistors (EG-OFETs) and organic electrochemical transistors (OECTs). EG-OFETs, based on molecules and polymers, can be operated at low electrical bias (about 1 V or below) and permit unprecedented charge carrier densities within the transistor channel. OECTs can be operated in aqueous environment as efficient ion-to-electron converters, thus providing an interface between the worlds of biology and electronics. The exploration and the exploitation of coupled ionic and electronic transport in organic materials brings together different disciplines such as materials science, physics, chemistry, electrochemistry, organic electronics and biology.

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87 refs.] -(TARABELLA, G.; MOHAMMADI, F. M.; COPPEDE, N.; BARBERO, F.; IANNOTTA, S.; SANTATO*, C.; CICOIRA, F.; Chem. Sci. 4 (2013) 4, 1395-1409, http://dx.doi.org/10.1039/c2sc21740f ; Dep. Gen. Phys., Ec. Polytech. Montreal, Montreal, Que. H3T 1J4, Can.; Eng.) -Nuesgen 27-235