Thermally Activated Delayed Fluorescence Polymers for Efficient Solution-Processed Organic Light-Emitting Diodes

Thermally activated delayed fluorescence (TADF) π‐conjugated polymers are developed for solution‐processed TADF–OLEDs. Benzophenone‐based alternating donor–acceptor structures contribute to the small ∆EST, enabling efficient exciton‐harvesting through TADF. Solution‐processed OLEDs using the TADF po...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2016-06, Vol.28 (21), p.4019-4024
Main Authors: Lee, Sae Youn, Yasuda, Takuma, Komiyama, Hideaki, Lee, Jiyoung, Adachi, Chihaya
Format: Article
Language:English
Subjects:
benzophenone
Electroluminescence
Emitters
Excitation
Fluorescence
Organic light emitting diodes
Polymers
solution processes
thermally activated delayed fluorescence
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Summary:Thermally activated delayed fluorescence (TADF) π‐conjugated polymers are developed for solution‐processed TADF–OLEDs. Benzophenone‐based alternating donor–acceptor structures contribute to the small ∆EST, enabling efficient exciton‐harvesting through TADF. Solution‐processed OLEDs using the TADF polymers as emitters can achieve high maximum external electroluminescence efficiencies of up to 9.3%.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201505026