- 专利标题： Highly efficient OLED devices with very short decay times
-
申请号： US15105947申请日： 2014-12-17
-
公开(公告)号： US10347851B2公开(公告)日： 2019-07-09
- 发明人: Christian Lennartz , Stefan Metz , Korinna Dormann , Gerhard Wagenblast , Ute Heinemeyer , Hannah Mangold , Minlu Zhang , Thomas-Wesley Holcombe
- 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： EP13198990 20131220
- 国际申请： PCT/EP2014/078342 WO 20141217
- 国际公布： WO2015/091716 WO 20150625
- 主分类号： H01L51/00
- IPC分类号： H01L51/00 ; H01L51/50 ; C09K11/06 ; C09K11/02
摘要：
The present invention relates to organic light-emitting devices comprising (a) an anode, (i) a cathode, and (e) an emitting layer between the anode and cathode, comprising 2 to 40% by weight of a luminescent organometallic complex X having a difference of the singlet energy (ES1(X)) and the triplet energy (ET1(X)) of smaller than 0.2 eV [Δ (ES1(X))−(ET1(X)) ES1(Y)]. By doping, for example, an emitting layer containing a luminescent organometallic complex having a small S1-T1 splitting, with a fluorescent emitter the emission decay time can significantly be shortened without sacrificing external quantum efficiency (EQE) because of very efficient energy transfer.
公开/授权文献
信息查询
IPC分类:
