Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5385826 | Chemical Physics Letters | 2010 | 5 Pages |
Abstract
⺠Doped fluorescent OLEDs exhibit significant intensity overshoot at the beginning of a current pulse when driven at very high brightnesses. ⺠The effect is due to interaction of dopant singlets with host triplets and polarons. ⺠Rate equations are developed to describe all aspects of the overshoot. ⺠A means to reduce this effect, and to achieve potentially higher quantum efficiency in ultrabright fluorescent OLEDs is to co-dope the emission layer with a fast phosphor molecule that acts as a triplet sink.
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Authors
Yifan Zhang, Matthew Whited, Mark E. Thompson, Stephen R. Forrest,