Towards Highly Efficient Blue-Phosphorescent Organic Light-Emitting Diodes with Low Operating Voltage and Excellent Efficiency Stability

Let there be light! An effective strategy for the design of highly efficient phosphine oxide light‐emitting‐diode hosts with an ortho‐linked structure has been demonstrated by synthesizing 4‐diphenylphosphoryl dibenzofuran. The ortho linkage of the phosphine oxide moiety has the dual effect of retai...

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Bibliographic Details
Published in:Chemistry : a European journal 2011-01, Vol.17 (2), p.445-449
Main Authors: Han, Chunmiao, Xie, Guohua, Xu, Hui, Zhang, Zhensong, Yu, Donghui, Zhao, Yi, Yan, Pengfei, Deng, Zhaopeng, Li, Qiang, Liu, Shiyong
Format: Article
Language:English
Subjects:
Chemistry
Chromophores
density functional calculations
Dibenzofuran
doping
fluorescence
light-emitting diodes
Phosphine
Phosphine oxide
Phosphorescence
phosphorus
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Summary:Let there be light! An effective strategy for the design of highly efficient phosphine oxide light‐emitting‐diode hosts with an ortho‐linked structure has been demonstrated by synthesizing 4‐diphenylphosphoryl dibenzofuran. The ortho linkage of the phosphine oxide moiety has the dual effect of retaining high T1 levels and efficiently polarising chromophores (see graphic).
ISSN:0947-6539
1521-3765
DOI:10.1002/chem.201001981