Internal connector for organic electronic devices

US8603642B2 · kind B2 · utility

Assignee

• Global OLED Technology LLC · US

Inventors

• Tukaram K. Hatwar · Penfield, US
• Jeffrey P. Spindler · Rochester, US
• Denis Y. Kondakov · Kendall, US
• Steven A. Van Slyke · Pittsford, US
• Sven Murano · Dresden, DE
• Gufeng He · Dresden, DE

Key dates

• Filing date: May 13, 2009
• Grant date: Dec 10, 2013
• Expiry date: Dec 14, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/12507

Abstract

The invention provides an electronic device including an anode and a cathode, between which there are at least two organic phototransducing units where the units are separated by an intermediate connecting region which comprises in sequence: an organic p-type layer, an intermediate layer in direct contact with the organic p-type layer and including a compound that has a LUMO more negative than −3.0 eV and is different from the organic compound in the organic p-type layer, and an n-type doped organic layer in direct contact with the intermediate layer and including an electron transport material as a host and an organic n-dopant with a HOMO less negative than −4.5 eV. In one embodiment, the electronic device is a tandem OLED.