GREEN LIGHT THERMALLY ACTIVATED DELAYED FLUORESCENT MATERIAL, SYNTHESIS METHOD THEREOF, AND ELECTROLUMINESCENT DEVICE

摘要

Provided are a green light thermally activated delayed fluorescent material, a synthesis method thereof, and an electroluminescent device, the green light thermally activated delayed fluorescent material is: a target compound synthesized by reacting an electron donor with an electron acceptor, the target compound having a D-A molecular structure; wherein, the electron acceptor being a planar electron acceptor having an ultra-low triplet energy level, and the target compound having a triplet energy level in the range of 2.0-3.0 eV. The synthesis method of the green light thermally activated delayed fluorescent material comprises: a reaction solution preparation step; a target compound synthesis step; an extraction step; and a target compound purification processing step. The electroluminescent device comprises: a substrate layer, a hole transport and injection layer, a light emitting layer, an electron transport layer and a cathode layer. The technical effect is synthesizing a green light thermally activated delayed fluorescent material having high-performance, improving the synthesis efficiency, and achieving the preparation of the high-efficiency organic electroluminescent device.