Spiro-configured bifluorenes: Highly efficient emitter for UV organic light-emitting device and host material for red electrophosphorescence

被引:118
作者
Wong, KT [1 ]
Liao, YL
Lin, YT
Su, HC
Wu, CC
机构
[1] Natl Taiwan Univ, Dept Chem, Taipei 106, Taiwan
[2] Natl Taiwan Univ, Dept Elect Engn, Grad Inst Electroopt Engn, Taipei 106, Taiwan
[3] Natl Taiwan Univ, Grad Inst Elect Engn, Taipei 106, Taiwan
关键词
D O I
10.1021/ol051865q
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Remarkable UV OLED devices using novel spiro-configured bifluorenes as UV emitters have been successfully achieved with external quantum efficiencies up to 2.6-3.1% and emission wavelengths as short as 370 nm. In addition, these large-gap materials have been shown to be effective hosts for red phosphorescent emitters in phosphorescent OLEDs. This result represents the first example that pure hydrocarbon molecules can serve as an efficient host for red electrophosphorescence devices.
引用
收藏
页码:5131 / 5134
页数:4
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