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Yi-Lu Chang, Brett A. Kamino, Zhibin Wang, Michael G. Helander, Yingli Rao, Lily Chai, Suning Wang, Timothy P. Bender and Zheng-Hong Lu Highly Efficient Greenish-Yellow Phosphorescent Organic Light-Emitting Diodes Based on Interzone Exciton Transfer Advanced Functional Materials 23

Version of Record online: 30 JAN 2013 | DOI: 10.1002/adfm.201202944

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A new greenish-yellow emitter is synthesized and a novel device concept is introduced featuring interzone exciton transfer to achieve unprecedented performance: external quantum efficiencies (current efficiencies) of 21.5% (77.4 cd/A) and 20.2% (72.8 cd/A) at 1000 cd/m2 and 5000 cd/m2, respectively, for greenish-yellow emitting phosphorescent organic light-emitting diodes, which are excellent for displays and solid-state lighting.

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