[OLED1-3L] Impact of Donor and Acceptor Modification on TADF and Roll-off Behaviors in Solution-Processed OLED | Proceedings of the International Display Workshops Volume 31 (IDW '24)

Proceedings of the International Display Workshops Volume 31 (IDW '24)

Dec 4 - Dec 6, 2024Sapporo Convention Center

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Proceedings of the International Display Workshops Volume 31 (IDW '24)

Dec 4 - Dec 6, 2024Sapporo Convention Center

[OLED1-3L]Impact of Donor and Acceptor Modification on TADF and Roll-off Behaviors in Solution-Processed OLED

Heetae Yang¹, *Thi Na Le¹, Nargis Ali¹, Yun-Hi Kim², Min Chul Suh¹(1. Kyung Hee University (Korea), 2. Gyeongsang National University (Korea))

https://doi.org/10.36463/idw.2024.0571

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Keywords:

TADF Materials,TADF Sensitizer,Efficiency Roll-off,Aggregation-Induced Emission

A comprehensive analysis of the up-conversion of triplet to singlet excitons was conducted for two newly designed D-A type TADF molecules, SiPhCzTrz and SiTrzPhCz. Their differing TADF behaviors, influenced by the positioning of the electron donor (PhCz) and acceptor (Trz), led to varying effects on efficiency roll-off in OLEDs using phosphorescent dopant.

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