- 专利标题： Fluorescent organic light emitting elements having high efficiency
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申请号： US16792983申请日： 2020-02-18
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公开(公告)号： US11706978B2公开(公告)日： 2023-07-18
- 发明人: Junichi Tanabe , Christian Lennartz
- 申请人： UDC IRELAND LIMITED
- 申请人地址： IE Dublin
- 专利权人： UDC IRELAND LIMITED
- 当前专利权人： UDC IRELAND LIMITED
- 当前专利权人地址： IE Dublin
- 代理机构： Riverside Law LLP
- 优先权： EP 168826 2014.05.19
- 主分类号： H01L51/00
- IPC分类号： H01L51/00 ; H10K85/60 ; C09B15/00 ; C09B19/00 ; C09B21/00 ; C07D498/04 ; C09K11/06 ; C09B57/00 ; C07D513/04 ; C07D487/04 ; C09B17/00 ; C09K11/02 ; H10K50/11 ; H10K50/12
摘要：
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.
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.
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