Management of singlet and triplet excitons for efficient white organic light-emitting devices

Yiru Sun, Noel C. Giebink, Hiroshi Kanno, Biwu Ma, Mark E. Thompson and Stephen R. Forrest ()
Additional contact information
Yiru Sun: Princeton University
Noel C. Giebink: Princeton University
Hiroshi Kanno: Princeton University
Biwu Ma: University of Southern California
Mark E. Thompson: University of Southern California
Stephen R. Forrest: Princeton University

Nature, 2006, vol. 440, issue 7086, 908-912

Abstract: The white light of technology With energy conservation high on the political agenda, the search for economical light sources is a hot topic. An advance reported this week could be an important step in the field. It introduces a new architecture for making organic light-emitting devices that produce white light suitable for solid-state lighting. What is new is the use of fluorescent and phosphorescent light-emitting dopants arranged to optimize harvesting of the electric charge and achieve potentially 100% internal quantum efficiency. Technology of this type has the potential to make OLEDs (organic light emitting devices) much more efficient than incandescent lighting. Even at an early stage of development this new source is up to 75% more efficient than today's incandescent sources at similar brightnesses.

Date: 2006
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DOI: 10.1038/nature04645

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