| abstract |
The present invention relates to the technical field of organic luminescent materials, in particular to a red, green and blue thermally activated delayed fluorescent material, its synthesis method and application; the red, green and blue thermally activated delayed fluorescent material has the following general formula: The red, green and blue thermally activated delayed fluorescent material provided by the present invention has a novel structure, a lower singlet triplet energy level difference, a fast reverse intersystem crossing constant (kRISC) and a high photoluminescence quantum yield (PLQY). The heat-activated delayed fluorescent material has remarkable characteristics and long service life, and can be applied to mass-produced electroluminescence-based displays and light-emitting device structures. |