ORGANIC ELECTROCHEMICAL TRANSISTOR HAVING AN IMPROVED CONDUCTIVE CHANNEL
An organic electrochemical device including a substrate on which a source and drain are located, a gate electrode, and either a conductive channel of at least one organic conductive track or a conductive channel including at least one organic conductive track. Also, a method of manufacturing the organic electrochemical device.
1 - 14 . (canceled)
15 . An organic electrochemical transistor comprising:
a substrate on which are located a source and a drain;
a gate electrode; and
a conductive channel located on the substrate and contacting on one of its ends the source and on its other end the drain; said conductive channel comprising or consisting of at least one organic conductive track;
wherein said at least one organic conductive track has:
a contact surface S contact corresponding to the contact surface of the at least one organic conductive track with an electrolyte solution;
a projected surface S projected corresponding to the contact surface of the at least one organic conductive track with the substrate; said projected surface S projected ranging from 10 −4 cm 2 to 0.05 cm 2 or said projected surface S projected being the contact surface of multiple organic conductive tracks, each of said multiple organic conductive tracks having a width w ranging from 1 μm to 200 μm; and
a ratio R between the contact surface S contact and the projected surface S projected higher than 1.
16 . The organic electrochemical transistor according to claim 15 , comprising a ratio r of the width w by height h of the at least one organic conductive track ranges from 1 to 200.
17 . The organic electrochemical transistor according to claim 15 , wherein the conductive channel comprises or consists of at least two organic conductive tracks.
18 . The organic electrochemical transistor according to claim 15 , wherein the conductive channel comprises or consists of multiple organic conductive tracks.
19 . The organic electrochemical transistor according to claim 15 , wherein the organic conductive track is straight.
20 . The organic electrochemical transistor according to claim 15 , wherein each organic conductive track is perpendicular to the longitudinal axis of the gate electrode.
21 . The organic electrochemical transistor according to claim 15 , wherein each organic conductive track is parallel to the longitudinal axis of the gate electrode.
22 . The organic electrochemical transistor according to claim 15 , wherein the organic conductive track is a polymer selected from polythiophenes, polypyrroles, polyanilines, polyisothianaphtalenes, polyphenylene vinylenes, polystyrenes and copolymers thereof.
23 . The organic electrochemical transistor according to claim 15 , wherein the organic conductive channel at least partially covers the source and the drain.
24 . The organic electrochemical transistor according to claim 15 , further comprises a dielectric layer.
25 . The organic electrochemical transistor according to claim 15 , further comprising at least one metallic track.
26 . The organic electrochemical transistor according to claim 25 , wherein the metallic track is manufactured from metallic nanoparticles or metallic colloids.
27 . A method of manufacturing the organic electrochemical transistor according to claim 15 , wherein the conductive channel is manufactured on the substrate by an additive manufacturing technique.
28 . A biosensor comprising the organic electrochemical transistor according claim 15 .