Electrochemical device

US7482620B2 · kind B2 · utility

Assignee

• Acreo AB · SE

Inventors

• Thomas Kugler · Cambridge, GB
• Magnus Berggren · Vreta kloster, SE
• Tommi Remonen · Nyköping, SE
• Anna Malmström · Söderhamn, SE
• Bjorn Knuthammar · Linköping, SE
• Petronella Norberg · Säter, SE

Key dates

• Filing date: Nov 29, 2002
• Grant date: Jan 27, 2009
• Expiry date: Mar 9, 2023

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K85/1135
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

An electrochemical device is provided, comprising a source contact connected to a first antenna pad, a drain contact connected to a second antenna pad, at least one gate electrode, an electrochemically active element arranged between, and in direct electrical contact with, the source and drain contacts, which electrochemically active element comprises a transistor channel and is of a material comprising an organic material having the ability of electrochemically altering its conductivity through change of redox state thereof, and a solidified electrolyte in direct electrical contact with the electrochemically active element and said at least one gate electrode and interposed between them in such a way that electron flow between the electrochemically active element and said gate electrode(s) is prevented. In the device, flow of electrons between source contact and drain contact is controllable by means of a voltage applied to the gate electrode(s).