LIGHT THERMALLY ACTIVATED DELAYED FLUORESCENCE (TADF) MATERIAL, PREPARING METHOD THEREOF, AND ELECTROLUMINESCENT DEVICE

摘要

The present invention provides a thermally activated delayed fluorescent material, a method for preparing the same, and an electroluminescent device including a compound consisting of a receptor A and a donor D, the compound having a molecular structure of D-A shown in Formula 1:; D-A   Formula 1wherein the receptor A is selected from any one of the following structural formulas:; wherein R is selected from any one of the following structural formulas: ; ;andthe donor D is selected from any one of the following structural formulas:;