| abstract |
The present invention provides an organic white light material with heat-activated delayed aggregation-induced luminescent properties and its synthesis method and application. The general molecular formula of the white light material is Ar-Ar 1 -Ar 2 ; wherein, Ar is a phenothiazine electron donating Substituents, Ar 1 is a strong electron-withdrawing group, Ar 2 is an aromatic fused ring or aromatic heterocyclic substituent except phenothiazine. The synthesis method of the material of the present invention is simple, and the thermal properties, luminous efficiency, and white light color purity of the final product can be adjusted by connecting different aromatic fused rings or aromatic heterocyclic groups, and the obtained white light material has thermally activated delayed fluorescence and aggregation induction. Luminescence properties, its glass transition temperature is high, excellent luminescence performance. The obtained white light material is used as a light-emitting layer to prepare non-doped OLED devices, has high light-emitting brightness and good stability, and can meet practical requirements. |