Fluorene-Based Oligomers for Highly Efficient and Stable Organic Blue-Light-Emitting Diodes

被引:109
|
作者
Zhen, Chang-Gua [1 ]
Chen, Zhi-Kuan [1 ]
Liu, Qin-De [1 ]
Dai, Yan-Feng [1 ]
Shin, Richard Yee Cheong [1 ]
Chang, Soon-Yee [1 ]
Kieffer, John [2 ]
机构
[1] Inst Mat Res & Engn, Singapore 117602, Singapore
[2] Univ Michigan, Dept Mat Sci & Engn, Ann Arbor, MI 48109 USA
关键词
SEMICONDUCTING POLYMERS; EXCITON FORMATION; TRIPLET EXCITONS; THIN-FILMS; DEVICES; ELECTROLUMINESCENCE; EMISSION; SINGLET; LAYER;
D O I
10.1002/adma.200900095
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Highly efficient and stable blue-light-emitting materials consisting of oligofluorenyl blocks and charge transporting segments are synthesized. The external quantum efficiencies of the solution-processed light-emitting diodes were of up to 6.1% and 8.6% for undoped and doped devices, respectively. The exceedingly high efficiency and excellent stability of these devices suggest that these new developed materials are very promising for deep-blue-light OLEDs.
引用
收藏
页码:2425 / +
页数:6
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