期刊
MACROMOLECULAR CHEMISTRY AND PHYSICS
卷 211, 期 18, 页码 1969-1976出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/macp.201000197
关键词
click chemistry; convergent orthogonal strategy; dendrimers; electrophosphorescence; light-emitting diodes
资金
- National Natural Science Foundation of China (NSFC) [20674049]
- Shanghai Municipal Government [B202, 10ZZ15]
A new solution-processable bipolar dendrimer with carbazole units as hole-transporting units and oxadiazole units as electron-transporting units was efficiently synthesized based on a convergent approach by alternation of a Cu-catalyzed azide/alkyne cycloaddition reaction and Williamson ether synthesis. The orthogonal chemistry completely avoided protection and activation of the focal points in the process of dendrimer synthesis. The dendrimer showed a wide bandgap and good thermal stability. Electrophosphorescent devices with the configuration ITO/PEDOT:PSS/bipolar dendrimer: Ir(ppy)(3)/TPBI/LiF/Al were fabricated. The devices showed a maximum current efficiency of 16.8 cd.A(-1), a maximum power efficiency of 4.22 lm.W-1 and an external quantum efficiency of 5.7%.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据