A fluorene-bridged double carbonyl/amine multiresonant thermally activated delayed fluorescence emitter for efficient green OLEDs
A fluorene-bridged double carbonyl/amine multiresonant thermally activated delayed fluorescence emitter for efficient green OLEDs
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用于高效绿色 OLED 的芴桥双羰基/胺多共振热激活延迟荧光发射器
DOI：
10.1039/d3cc05761e
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发表时间：
2024
影响因子：
4.9
通讯作者：
Wu S
中科院分区：
文献类型：
--
作者：
Wu S
在此，我们报道了一个芴桥接的双羰基/胺基MR TADF发射器DDiKTa- f，通过锁定先前报道的化合物DDiKTa的构象而形成。使用这种策略，DDiKTa-F表现出更窄、更亮和红移的发射。含有DDiKTa-F的oled在493 nm处发光，EQEmax为15.3%，在100 cd m−2时效率滚降为35%。
Herein, we report a fluorene-bridged double carbonyl/amine-based MR TADF emitter DDiKTa-F, formed by locking the conformation of the previously reported compound DDiKTa. Using this strategy, DDiKTa-F exhibited narrower, brighter, and red-shifted emission. The OLEDs with DDiKTa-F emitted at 493 nm and showed an EQEmax of 15.3% with an efficiency roll-off of 35% at 100 cd m−2.