Interfacial triplet confinement for achieving efficient solution-processed deep-blue and white electrophosphorescent devices with underestimated poly(N-vinylcarbazole) as the host
Interfacial triplet confinement for achieving efficient solution-processed deep-blue and white electrophosphorescent devices with underestimated poly(N-vinylcarbazole) as the host
复制标题
以被低估的聚(N-乙烯基咔唑)为主体的界面三线态限制实现高效的溶液加工深蓝色和白色电致磷光器件
DOI:
10.1039/c3tc30912f
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发表时间:
2013-07
影响因子:
6.4
通讯作者:
Wang, Lixiang
中科院分区:
文献类型:
--
作者:
Ding, Junqiao;Xie, Zhiyuan;Wong, Wai-Yeung;Wang, Lixiang
Highly efficient deep-blue and white PhOLEDs with FIr6 as a blue emitter and PVK as a host are developed by using a high triplet level interfacial layer to confine triplet excitons within the emissive layer. Incorporation of an interfacial layer with a higher triplet level such as TPCz can effectively cut off the potential loss pathways of the triplet excitons within the PVK:FIr6 emissive layer. The resultant PVK:FIr6-based deep-blue and white solution-processed PhOLEDs exhibit an unprecedented forward-viewing EQE of 16.1% and a total EQE of 28.0% (38.4 lm W−1) at a practical luminance of 1000 cd m−2, respectively.
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影响因子:
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通讯作者:
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影响因子:
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作者:
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