申请人:UDC IRELAND LIMITED
公开号:US10586930B2
公开(公告)日:2020-03-10
The present invention relates to organic light emitting elements, comprising thermally activated delayed fluorescence (TADF) emitters and/or hosts of formula
which have a sufficiently small energy gap between S1 and T1 (ΔEST) to enable up-conversion of the triplet exciton from T1 to S1. The organic light emitting elements show high electroluminescent efficiency.
本发明涉及有机发光元件,包括热激活延迟荧光(TADF)发射器和/或式 1 的主机
它们在 S1 和 T1 之间具有足够小的能隙(ΔEST),以实现三重激子从 T1 到 S1 的上转换。这种有机发光元件具有很高的电致发光效率。