FIBER-BASED ORGANIC ELECTROCHEMICAL TRANSISTOR

摘要

An organic electrochemical transistor (OECT) that may be used as a biosensor is built up by layers applied to a monofilament. A first conducting layer applied to the monofilament includes generally cylindrical source and drain contacts with a gap therebetween. An electro-active layer of an organic material altering its electrical conductivity through a change in redox state is in electrical contact with the source and drain contacts, and has a transistor channel interface for contacting an electrolyte. A gate electrode is spaced apart from the first monofilament, and may comprise a cylindrical layer built up on another length of monofilament.

主权项

1. An electrochemical transistor device comprising:
a first monofilament; a first conducting layer and an electro-active layer that are substantially coaxial with, and extend circumferentially about, the first monofilament, wherein
the first conducting layer comprises a source contact and a drain contact and includes a gap between the source contact and the drain contact,the electro-active layer is in electrical contact with the source contact and the drain contact,the electro-active layer has a transistor channel interface for contacting an electrolyte, andthe electro-active layer is an organic material having an electrical conductivity altered by a change in redox state of the electro-active layer; and a gate electrode spaced from the first monofilament, wherein current flow between the source contact and the drain contact is controllable by a voltage applied to the gate electrode.