-
公开(公告)号：US11362295B2
公开(公告)日：2022-06-14
申请号：US16552319
申请日：2019-08-27
发明人： Lian Duan , Dongdong Zhang , Xiaozeng Song , Minghan Cai , Jinbei Wei
摘要： The present disclosure relates to the technical field of display, and specifically relates to an organic electroluminescent device, and in particular, to a highly efficient fluorescence device. An organic electroluminescent device includes a hole transport layer, and a light-emitting layer. The hole transport layer and the light-emitting layer has an interface exciplex formed at an interface therebetween.
-
公开(公告)号：US11637245B2
公开(公告)日：2023-04-25
申请号：US16804406
申请日：2020-02-28
发明人： Lian Duan , Minghan Cai , Xiaozeng Song , Jinbei Wei
摘要： An organic electroluminescence device and a display apparatus, where the organic electroluminescence device includes an organic light emitting layer which includes a host material, a sensitizer material, and a resonance thermally activated delayed fluorescent material, where the host material is a wide bandgap material, and the sensitizer material is an exciplex material, a singlet state energy level for the wide bandgap material is greater than a singlet state energy level for the exciplex, and a triplet state energy level for the wide bandgap material is greater than a triplet state energy level for the exciplex, and a singlet state energy level for the exciplex material is greater than a singlet state energy level for the resonance delayed fluorescent material, and a triplet state energy level for the exciplex material is greater than a triplet state energy level for the resonance delayed fluorescent material.
-
公开(公告)号：US11778908B2
公开(公告)日：2023-10-03
申请号：US16683276
申请日：2019-11-14
发明人： Lian Duan , Xiaozeng Song , Dongdong Zhang , Jinbei Wei
IPC分类号： H01L51/00 , C07D209/86 , C09K11/06 , C07D403/10 , C07C211/54 , C07C13/72 , C07F9/6521 , C07C15/38 , C07F9/53 , C07D401/14 , C07D471/04 , H10K85/60 , H10K50/11 , H10K101/10
CPC分类号： H10K85/6572 , C07C13/72 , C07C15/38 , C07C211/54 , C07D209/86 , C07D401/14 , C07D403/10 , C07D471/04 , C07F9/5329 , C07F9/6521 , C09K11/06 , H10K85/633 , H10K85/636 , H10K85/654 , C07C2603/44 , C07C2603/97 , C09K2211/1007 , C09K2211/1011 , C09K2211/1014 , C09K2211/1018 , H10K50/11 , H10K85/626 , H10K2101/10
摘要： The present disclosure relates to display technologies, and particularly discloses an organic electroluminescent device. This organic electroluminescent device includes a light-emitting layer, the light-emitting includes an exciplex composed of a donor molecule and an acceptor molecule, and a wide band gap material for increasing the inter-molecular spacing between the donor molecule and the acceptor molecule. According to the device of the present disclosure, the degree of orbital overlap of HOMO and LUMO of the formed exciplex and the singlet-triplet energy level difference can be reduced, the reverse intersystem crossing rate (kRISC) of the exciplex host can be increased, the Föster energy transferred to the guest molecule can be enhanced, and the efficiency and the lifetime of the device can be improved.
-
公开(公告)号：US11508927B2
公开(公告)日：2022-11-22
申请号：US16804383
申请日：2020-02-28
发明人： Lian Duan , Minghan Cai , Xiaozeng Song , Jinbei Wei
摘要： An organic electroluminescence device, a preparation method thereof, and a display apparatus, the organic electroluminescence device including an organic light emitting layer which includes a host material, a sensitizer material, and a resonance thermally activated delayed fluorescent material, where the host material is a wide bandgap material, and the sensitizer material is a thermally activated delayed fluorescent material. The singlet state energy level of the thermally activated delayed fluorescent material falls between the singlet state energy level of the wide bandgap material and the singlet state energy level of the resonance thermally activated delayed fluorescent material. The triplet state energy level of the thermally activated delayed fluorescent material falls between the triplet state energy level of the wide bandgap material and the triplet state energy level of the resonance thermally activated delayed fluorescent material.
-
-
-
搜索结果
4 条记录 (耗时 0.019 秒)
