| abstract |
The invention provides an organic monomolecular white light material, a preparation method thereof and an OLED device. The organic monomolecular white light material of the present invention has room-temperature phosphorescent emission properties in a solid state, and can capture triplet excitons to achieve high-efficiency light emission. This type of organic monomolecular white light material also has a relatively high thermal decomposition temperature and glass transition temperature , the synthesis method and purification process are simple, the reaction conditions are mild, the yield is high, and the thermal properties, luminous efficiency and white light color purity of the final product can be adjusted by connecting different aromatic fused ring groups or aromatic heterocyclic groups. The OLED device of the present invention uses the above-mentioned organic monomolecular white light material as the light-emitting layer, and the light-emitting layer of the light-emitting layer has high luminous brightness and good stability, so that the luminous efficiency and service life of the OLED device can meet the practical requirements. |