We have demonstrated that it is possible to fabricate high-efficiency organic light emitting diodes by using "smart" blends containing conjugated polymers and phosphorescent iridium complexes. By using these blends one circumvents complicated device fabrication procedures that require multiple sublimation steps.

Organic light emitting diodes have the promise to displace much of the current display platforms. They are lightweight, flexible, and consume less power than current light bulb technology. The findings in our paper show how to improve device efficiency without having to rely on multistep procedures that would increase cost.

We both have long standing interests in the Physics, Chemistry, and applications of conjugated polymers and other organic semiconductors. Studies in our laboratories range from basic scientific problems to technology relevant applied work.

Guillermo C. Bazan
Professor of Chemistry and Materials
Chemistry Department
University of California
Santa Barbara, CA, USA

Alan J. Heeger
Professor of Physics and Materials
Physics Department/Materials Department
University of California
Santa Barbara, CA, USA