DELAYED FLUORESCENCE MATERIAL AND ORGANIC LIGHT EMITTING DEVICE HAVING THE DELAYED FLUORESCENCE MATERIAL

摘要

Delayed fluorescent materials are disclosed. The delayed fluorescent material has a molecular structure including an electron donor unit that donates electrons and an electron acceptor unit that is coupled to the electron donor unit and accepts electrons. In this case, the electron acceptor unit has various electrons. And indolocarbazole groups comprising acceptor units. Such a delayed fluorescent material not only exhibits high structural and passion stability, but also high quantum efficiency.