Spiro‐Linked Hyperbranched Architecture in Electrophosphorescent Conjugated Polymers for Tailoring Triplet Energy Back Transfer
Spiro‐Linked Hyperbranched Architecture in Electrophosphorescent Conjugated Polymers for Tailoring Triplet Energy Back Transfer
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DOI：
10.1002/adma.201104544
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发表时间：
2012-04
影响因子：
29.4
通讯作者：
Shiyang Shao;Zhihua Ma;Junqiao Ding;Lixiang Wang;X. Jing;Fo-song Wang
中科院分区：
文献类型：
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作者：
Shiyang Shao;Zhihua Ma;Junqiao Ding;Lixiang Wang;X. Jing;Fo-song Wang
首次将一种螺环连接的超支化结构引入到电致磷光共轭聚合物中，旨在同时定制从磷光客体到共轭聚合物主体的分子内和分子间三重态能量反向转移。基于具有这种独特结构的原型，与传统的混合对应物相比，三重态激子的衰减更慢，器件效率提高了5-8倍。
A spiro-linked hyperbranched architecture has been incorporated into electrophosphorescent conjugated polymers for the first time, aiming at simultaneously tailoring the intra- and intermolecular triplet energy back transfer from the phosphorescent guest to the conjugated polymer host. Based on a prototype with this unique structure, slower decay of triplet excitons, and 5-8 fold enhancement of device efficiencies are obtained compared with the conventional blending counterpart.