Abstract
The white organic light emitting diodes (WOLEDs) with high power efficiency (>100 lm/W) are considered as strong candidates for next generation illumination devices. Especially, WOLEDs use environmentally benign organic materials and their fabrication cost can be significantly reduced with potential roll-to-roll processing technology. To date, however, the white electroluminescent (EL) spectrum is generated using multiple emitters embedded in a comparably complex device structure. In this presentation, we will discuss some of our efforts towards the development of efficient WOLEDs using a single emitter, which include our progress on 1) excimer-based WOLEDs, and 2) the design and the synthesis of broadband phosphorescent emitters for lighting applications.
© 2011 Optical Society of America
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