Fiber-based organic electrochemical transistor

Patent metadata

Field	Value
Publication number	US-9178170-B2
Application number	US-201314066783-A
Country	US
Kind code	B2
Filing date	Oct 30, 2013
Priority date	Oct 30, 2013
Publication date	Nov 3, 2015
Grant date	Nov 3, 2015

Abstract

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.

First claim

The invention claimed is:

1. An electrochemical transistor device comprising:
a first monofilament and a second monofilament, wherein at least one of the first and second monofilaments is a nylon fiber;
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…

Assignees

• Univ Hong Kong Polytechnic

Inventors

• Yan Feng
• Liao Caizhi

Classifications

• H01L51/0558 Primary

  Electricity · mapped topic

• G01N27/4145 Primary

  Physics · mapped topic

• H10K10/484 Primary

  Electricity · mapped topic