| abstract |
The invention belongs to the technical field of organic photoelectric materials, and in particular relates to a class of transition metal complexes used as phosphorescent materials, a preparation method and applications thereof. Through the combination of Z 1 and Z 2 , the present invention can adjust the emission wavelength of the material in a relatively large wavelength range, and at the same time, by changing the heteroatoms on the main ligand, the wavelength of the emission light can be further precisely adjusted, so as to obtain a luminescent color with predictable The electroluminescent material; the main ligand of the present invention has the same skeleton structure, and only changing the position and type of the functional group and the heteroatom on the main ligand can realize a wide range of emission wavelengths from green light to deep red light adjustment; the complex prepared by the invention has high luminous efficiency, the preparation methods of different color luminescent materials are basically the same, and the operation is simple. |