Efficient Solution-Processed OLED Based on Thermally Activated Delayed Fluorescence Dendrimer with Butterfly Molecular Structure

Solution-processed TADF dendrimer based on D-A-D structure has been synthesized, which named POtCz-DPyM. The dendrimers show a small Δ E st . The performance of OLED device shows a relatively low turn-on voltage (4.2 V), the CE max efficiency of 13.0 cd A −1 , the EQE max of 5.6%. Moreover, the POt...

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Bibliographic Details
Published in:Journal of physics. Conference series 2023-03, Vol.2463 (1), p.12006
Main Authors: He, Yuting, Zhang, Cheng, Yan, Hao, Chai, Yongshuai, Zhou, Deyun
Format: Article
Language:English
Subjects:
Butterfly molecular structure
Carbazoles
dendrimer
Dendrimers
electroluminescent
Emitters
Molecular structure
Physics
solution-processed
TADF
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Summary:Solution-processed TADF dendrimer based on D-A-D structure has been synthesized, which named POtCz-DPyM. The dendrimers show a small Δ E st . The performance of OLED device shows a relatively low turn-on voltage (4.2 V), the CE max efficiency of 13.0 cd A −1 , the EQE max of 5.6%. Moreover, the POt modified carbazole was used as the donor to synthesize this novel dendrimer for the first time. And the solution-processed OLED based on POtCz-DPyM as emitter shows high performance among solution-processed devices.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2463/1/012006