POLYIMIDE LUMINESCENT MATERIAL, PREPARATION M ETHOD THEREOF, AND DEVICE THEREOF

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A polyimide luminescent material, a preparation method, and a used thereof are disclosed; the polyimide luminescent material includes a polyimide resin and a rare earth complex distributed in the polyimide resin, wherein the polyimide resin is a condensation polymer of an aromatic diamine containing a bidentate chelate ligand and an aromatic dianhydride, and the rare earth complex and the bidentate chelate ligand are connected by a chemical bond. The luminescent material has enhanced fluorescence intensity, thermal stability, and mechanical properties. The preparation method is simple and easy, and is suitable for industrial production.