Organic contact-enhancing layer for organic field effect transistors

US6870181B2 · kind B2 · utility

Assignee

• Motorola, Inc. · US

Inventors

• Jie Zhang · Beijing, CN
• Paul Brazis · South Elgin, US
• Daniel Gamota · Palatine, US
• Krishna Kalyanasundaram · Elmhurst, US
• Steven Scheifers · Hoffman Estates, US
• Jerzy Wielgus · Mount Prospect, US
• Abhijit Roy Chowdhuri · Oak Park, US

Key dates

• Filing date: Jul 2, 2002
• Grant date: Mar 22, 2005
• Expiry date: Aug 4, 2022

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K71/60

Abstract

An organic field effect transistor utilizes a bifunctional contact-enhancing agent at various interfaces to improve carrier mobility through the organic semiconductor layer, to improve carrier injection, and to enhance adhesion via a bifunctional mechanism. The contact-enhancing agent can be situated between the gate electrode (2) and the dielectric layer (3) to form a chemical or physical bond between the gate electrode and the dielectric layer. It can also be situated between the dielectric layer and the organic semiconducting layer (4), or between the source and drain electrodes (5, 6) and the organic semiconducting layer.