Journal
ADVANCED MATERIALS
Volume 20, Issue 21, Pages 4189-+Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.200801375
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Funding
- New Energy and industrial Technology Development Organization (NEDO)
- Mitsubishi Chemical Group, Science and Technology Research Center, INC [MCC-PC 1020]
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Highly efficient blue and white OLEDs with reduced efficiency roll-off based on a carrier- and exciton-confining structure are developed. Record power efficiencies of 46 and 44 lm W-1 and an external quantum efficiency of 25% at the illumination-relevant luminance of 1000 cd m(-2) are achieved for the blue and white OLEDs, respectively, without the use of any outcoupling techniques.
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