The present invention relates to compounds of the formula (I) and to the use thereof in organic electronic devices, and to organic electronic devices which comprise compounds of the formula (I), preferably as hole-transport materials and/or as matrix materials, in particular in combination with a further matrix material.
Novel host compounds containing indolo[3,2,1-jk]carbazole moiety are disclosed. These compounds are useful in phosphorescent OLEDs and particularly as hosts and/or electron-blocking layer materials.
DELAYED FLUORESCENCE MATERIAL AND ORGANIC LIGHT EMITTING DEVICE HAVING THE DELAYED FLUORESCENCE MATERIAL
申请人:RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
公开号:US20180114924A1
公开(公告)日:2018-04-26
A delayed fluorescence material is disclosed. The delayed fluorescence material has a molecular structure that includes an electron donor unit that donates electrons; and an electron acceptor unit that is coupled to the electron donor unit and accepts electrons, wherein the electron acceptor unit includes an indolocarbazole group having at least one acceptor functional-group bound to the indolocarbazole group. Thus, the delayed fluorescence material exhibits high structural and thermal stability as well as high quantum efficiency.
COMPOUND FOR THERMALLY ACTIVATED DELAYED FLUORESCENCE AND ORGANIC ELECTROLUMINESCENCE DEVICE INCLUDING THE SAME
申请人:Samsung Display Co., Ltd.
公开号:US20190036034A1
公开(公告)日:2019-01-31
Provided are a compound for thermally activated delayed fluorescence having a molecular aspect ratio of 1.5 or more, represented by the following Formula 1 and an organic electroluminescence device including the same in an emission layer. The organic electroluminescence device includes a first electrode, a hole transport region disposed on the first electrode, an emission layer disposed on the hole transport region, an electron transport region disposed on the emission layer, and a second electrode disposed on the electron transport region.