Electroluminescent polymer based on phenanthroimidazole units, preparation method therefor, and use thereof

Abstract

This application relates to an electroluminescent polymer based on phenanthroimidazole units and its preparation and use. The electroluminescent polymer based on phenanthroimidazole units has a structure as shown in the formula (I), and the side chain thereof contains phenanthroimidazole units. The electroluminescent polymer (1) has the properties of hybridized local and charge-transfer states; (2) the phenanthroimidazole unit has a large degree of conjugation and a strong rigidity; and (3) the raw materials of the polymer are cheap, the synthetic route is simple, and purification is convenient. The polymer has a good solubility, and can be used to prepare large-area flexible display devices by means of a solution processing technology. The polymer has great development potential and prospects in the field of organic electronic display.

Dependencies are inferred from the claim text.