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

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. T...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2009-06, Vol.21 (23), p.2425-2429
Main Authors: Zhen, Chang-Gua, Chen, Zhi-Kuan, Liu, Qin-De, Dai, Yan-Feng, Shin, Richard Yee Cheong, Chang, Soon-Yee, Kieffer, John
Format: Article
Language:English
Subjects:
high efficiency
oligofluorene
organic light-emitting diodes
singlet
triplet
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Summary: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.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.200900095