Fabrication of organic semiconductor devices using ink jet printing

US6087196A · kind A · utility

Assignee

• THE TRUSTEES OF PRINCETON UNIVERSITY · US

Inventors

• James C. Sturm · Princeton, US
• Chung-Chih Wu · Taipei, TW
• Duane Marcy · Syracuse, US
• Thomas Hebner · Ditzingen, DE

Key dates

• Filing date: Jan 28, 1999
• Grant date: Jul 11, 2000
• Expiry date: Jan 28, 2019

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K85/60

Abstract

A method of fabricating semiconductor devices using ink-jet printing is provided to directly deposit patterned polymer films to create OLED's and other semiconductor devices. The luminescence of poly-vinylcarbazol (PVK) films, with dyes of coumarin 6 (C6), coumarin 47 (C47), and nile red was similar to that of films of the same composition deposited by spin-coating. Light emitting diodes with low turn-on voltages were also fabricated in PVK doped with C6 deposited by ink-jet printing.