| abstract |
The invention discloses an organic electroluminescence material and its application. The organic electroluminescence material is made of a compound having the structure shown in formula (1) or formula (2). The invention also discloses the use of the An organic EL device of a novel material, the device uses the material as the phosphorescent light-emitting host of the light-emitting layer, the delayed fluorescence dopant of the light-emitting layer and the hole blocking layer, and has good performance, such as low driving voltage and low energy consumption , high efficiency and long half-life. |