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公开(公告)号：US20180175294A1
公开(公告)日：2018-06-21
申请号：US15737179
申请日：2016-06-15
发明人： Lian Duan , Dongdong Zhang , Song Liu , Jing Xie , Fei Zhao
IPC分类号： H01L51/00 , C07C211/61 , C07D221/20 , C07D413/10 , C07D413/14 , C07D403/10 , C07D417/14 , C07D487/16 , C07D403/14 , C07D241/48 , C07D417/10 , C07D209/86 , C07C317/36 , C07D219/02 , C07D265/38 , C07D487/14 , C07C255/58 , C07D209/80 , C07D285/14 , C07D417/04 , C07F3/06 , C07F3/02 , C07F1/02 , C07D471/20
CPC分类号： H01L51/006 , C07C211/61 , C07C255/58 , C07C317/36 , C07C2603/24 , C07C2603/97 , C07D209/80 , C07D209/86 , C07D219/02 , C07D221/20 , C07D241/48 , C07D265/38 , C07D285/14 , C07D403/10 , C07D403/14 , C07D413/10 , C07D413/14 , C07D417/04 , C07D417/10 , C07D417/14 , C07D471/20 , C07D487/14 , C07D487/16 , C07F1/02 , C07F3/02 , C07F3/06 , H01L51/0008 , H01L51/0052 , H01L51/0056 , H01L51/0059 , H01L51/0061 , H01L51/0067 , H01L51/0068 , H01L51/0069 , H01L51/007 , H01L51/0071 , H01L51/0072 , H01L51/0077 , H01L51/0092 , H01L51/5012 , H01L51/5016 , H01L51/5024 , H01L51/5056 , H01L51/5072 , H01L2051/0063 , H01L2251/5376 , H01L2251/5384 , H01L2251/558
摘要： Disclosed is an organic electroluminescent device, comprising a substrate and light emitting units formed in sequence on the substrate, characterized in that, each of the light emitting units comprises a first electrode layer (1), a light emitting layer (2) and a second electrode layer (3), the light emitting layer comprises a host material and a dye, the host material is made of materials having both electron transport capability and hole transport capability; at least one material in the host material has a CT excited triplet state energy level T1 greater than its n-π excited triplet state energy level S1, and T1-S1≤0.3 eV; or, at least one material in the host material has a CT excited triplet state energy level T1 greater than its n-π excited triplet state energy level S1, and T1-S1≥1 eV, with the difference between its n-π excited second triplet state energy level and its CT excited first singlet state energy level being in the range of −0.1 eV to 0.1 eV. The organic electroluminescent device configuration can sufficiently utilize the triplet state energy in the host material and the dye to increase the luminous efficiency and prolong the service life of the device.
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2.发明授权公开(公告)号：US10749128B2
公开(公告)日：2020-08-18
申请号：US15745060
申请日：2016-06-15
发明人： Lian Duan , Dongxin Ma , Song Liu , Jing Xie , Fei Zhao
摘要： The present invention relates to a depositable ionic organic functional material having a structure selected from the formulas (21) to (26). The depositable ionic organic functional material can be used in high-efficiency blue to red OLEDs. The present invention also relates to an organic electroluminescent device using the depositable ionic organic functional material as a dopant in the organic light-emitting layer thereof.
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公开(公告)号：US11437582B2
公开(公告)日：2022-09-06
申请号：US15737179
申请日：2016-06-15
发明人： Lian Duan , Dongdong Zhang , Song Liu , Jing Xie , Fei Zhao
IPC分类号： H01L51/54 , H01L51/00 , H01L51/50 , C07C211/61 , C07C255/58 , C07C317/36 , C07D209/80 , C07D209/86 , C07D219/02 , C07D221/20 , C07D241/48 , C07D265/38 , C07D285/14 , C07D403/10 , C07D403/14 , C07D413/10 , C07D413/14 , C07D417/04 , C07D417/10 , C07D417/14 , C07D471/20 , C07D487/14 , C07D487/16 , C07F1/02 , C07F3/02 , C07F3/06
摘要： Disclosed is an organic electroluminescent device, comprising a substrate and light emitting units formed in sequence on the substrate, characterized in that, each of the light emitting units comprises a first electrode layer (1), a light emitting layer (2) and a second electrode layer (3), the light emitting layer comprises a host material and a dye, the host material is made of materials having both electron transport capability and hole transport capability; at least one material in the host material has a CT excited triplet state energy level T1 greater than its n-π excited triplet state energy level S1, and T1-S1≤0.3 eV; or, at least one material in the host material has a CT excited triplet state energy level T1 greater than its n-π excited triplet state energy level S1, and T1-S1≥1 eV, with the difference between its n-π excited second triplet state energy level and its CT excited first singlet state energy level being in the range of −0.1 eV to 0.1 eV. The organic electroluminescent device configuration can sufficiently utilize the triplet state energy in the host material and the dye to increase the luminous efficiency and prolong the service life of the device.
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