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Jiuyan Li, Ting Zhang, Yunjing Liang and Ruixia Yang Solution-Processible Carbazole Dendrimers as Host Materials for Highly Efficient Phosphorescent Organic Light-Emitting Diodes Advanced Functional Materials 23

Article first published online: 10 SEP 2012 | DOI: 10.1002/adfm.201201326

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The dendritic analogues of small molecular phosphorescent host (4,4′-N,N′-dicarbazolebiphenyl (CBP)) inherit similar triplet energies and HOMO/LUMO levels to those of CBP, but exhibit extra merits of amorphous nature and solution-processible capability. These dendrimers greatly enhance device performance in comparison with traditional polyvinylcarbazole (PVK) when used as hosts in phosphorescent organic light-emitting diodes (PHOLEDs), representing perfect alternatives to PVK as solution-processible phosphorescent hosts for PHOLEDs.

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