Preparation and application of a kind of organic luminescent compound

Abstract

The invention relates to a benzophenanthrene olefines organic luminescent material, which can be used in an organic electroluminescent device structure, a series of derivative takes 2,7-dibromo benzophenanthrene as a base, alkene is introduced in benzophenanthrene, then aromatic amino group is continuously introduced, substituent groups such as an (un)substituted fused aromatic group, an (un)substituted aromatic heterocyclic groups can adjust electron transition and satisfy luminescent material requirement, especially the required light blue luminescent material. The benzophenanthrene olefines organic luminescent material has high luminescence efficiency, luminescence efficiency in a dilute solution is greater than 98%, luminescence efficiency in a film is greater than 63%, and the benzophenanthrene olefines organic luminescent material, has good prospect in an organic luminescent device application.

Description

technical field [0001] The invention belongs to the field of organic photoelectric materials, in particular to a triphenylene organic luminescent material and its preparation method and application. Background technique [0002] Organic electroluminescence (hereinafter referred to as OLED) and corresponding research began as early as the 1960s. In 1963, Pope et al. first discovered the electroluminescence phenomenon of organic single crystal anthracene, but due to the limitation of technical conditions, its driving voltage was as high as 400V, which failed to attract widespread attention. In 1987, C.W.Tang et al. of Kodak Corporation of the United States used evaporation Alq 3 An amorphous film device was made with HTM-2, and the driving voltage was reduced to less than 20v, so OLED attracted the attention of the world (US4356429). This type of device can be widely used in planar light-emitting components such as flat panel displays and panels due to its advantages of high...

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Problems solved by technology

[0003] Compared with green organic electroluminescent devices, blue organic electroluminescent devices cannot fully meet the requirements of full-color display

At present, blue-light organic light-emitting materials are mainly concentrated in some classic compound systems such as triarylamine systems, anthracene derivatives, carbazole derivatives, and metal complexes. However, these existing blue-light organic light-emitting materials are still facing difficulties in application, such as The life, brightness, and efficiency are low, which cannot meet the needs of industrialization; moreover, the synthesis methods of these materials are complicated, the purification is difficult, and relatively toxic raw materials are used in the synthesis process

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