Polydentate phosphine coordination copper trihalide tri-type complex as well as synthesis method and application of polydentate phosphine coordination copper trihalide tri-type complex

The polydentate phosphine coordination copper trihalide tri-type complex provided by the invention is obtained by carrying out a coordination reaction on a polydentate phosphine ligand and halogenated cuprous, the singlet state and the triplet state of the complex can be transitioned at the same time, dynamic distribution of excitons is realized in an electroluminescent process, accumulation of the excitons is reduced to the maximum extent, the efficiency of a device is improved, and the efficiency of the device is improved. Efficiency roll-off of the device is inhibited, and the maximum utilization rate of excitons in the electroluminescence process is achieved. 本发明提供了一种多齿膦配位铜三卤三型配合物，利用多齿膦配体和卤代亚铜进行配位反应得到，其单线态和三线态可以同时跃迁，并在电致发光过程中实现激子的动态分配，实现最大限度的降低激子的累积，提高器件效率，抑制器件的效率滚降，实现在电致发光过程中激子的最大利用率。