Abstract Lifetime enhancement of blue thermally activated delayed fluorescent (TADF) devices was achieved using a carrier separating host structure which was developed using dibenzofuran-triazine type electron-transporting type host materials. Two host materials built on a chemical platform of dibenzofuran-triazine were synthesized as high triplet energy host materials for a blue TADF emitter and were mixed with a common hole-transporting type host. The separation of the carrier channel in the emitting layer lead to voltage reduction, external quantum efficiency increase, and lifetime extension of blue TADF devices.

中文翻译：

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使用二苯并呋喃-三嗪型宿主通过分离的载流子通道增强蓝色热激活延迟荧光装置的寿命

摘要 使用二苯并呋喃-三嗪型电子传输型主体材料开发的载流子分离主体结构实现了蓝色热激活延迟荧光 (TADF) 器件的寿命增强。两种构建在二苯并呋喃-三嗪化学平台上的主体材料被合成为蓝色 TADF 发射体的高三线态能量主体材料，并与常见的空穴传输型主体混合。发射层中载流子通道的分离导致蓝色 TADF 器件的电压降低、外部量子效率增加和寿命延长。