|Inal, S.; Rivnay, J.; Leleux, P.; Ferro, M.; Ramuz, M.; Brendel, J.; Schmidt, M. M.; Thelakkat, M.; Malliaras, G.G.: A High Transconductance Accumulation Mode Electrochemical Transistor, Advanced Materials, 26(44), 7450-7455 (2014) -- DOI: 10.1002/adma.201403150|
An organic electrochemical transistor operates in accumulation mode with high transconductance. The channel comprises a thiophene-based conjugated polyelectrolyte, which is p-type doped by anions injected from a liquid electrolyte upon the application of a gate voltage. The use of ethylene glycol as a co-solvent dramatically improves the transconductance and the temporal response of the transistors.