Coordination compound and preparation method thereof, phosphorescent material, organic electroluminescent device, display screen and solar cell

A technology of complexes and compounds, applied in the field of complexes and their preparation, can solve the problems of insufficient luminous efficiency of phosphorescent materials and the like
CN110684053AActive Publication Date: 2020-01-14JILIN OPTICAL & ELECTRONICS MATERIALS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JILIN OPTICAL & ELECTRONICS MATERIALS
Publication Date
2020-01-14

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Abstract

The invention relates to the field of organic photoelectric materials, and specifically discloses a coordination compound and a preparation method thereof, a phosphorescent material, an organic electroluminescent device, a display screen and a solar cell, wherein the coordination compound has the following structure defined in the specification. According to the invention, the coordination compound of the embodiments has good luminous efficiency; by selecting the ligand of the specific heterocyclic ring to combine, the wavelength of the coordination compound is adjusted, so that the organic electroluminescent device prepared from the obtained coordination compound has increased luminous efficiency and long service life; and the preparation method of the embodiments has advantages of low synthesis price and low synthesis process requirements, is suitable for industrial production, and solves the problem of insufficient luminous efficiency of the existing phosphorescent material.
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Description

technical field

[0001] The invention relates to the field of organic photoelectric materials, in particular to a complex and a preparation method thereof, a phosphorescent material, an organic electroluminescent device, a display screen and a solar battery. Background technique

[0002] Electroluminescent devices, as a display device that uses electroluminescent materials to be excited to emit light, are widely used in the field of electronic product manufacturing. Electroluminescent devices can be divided into AC and DC types according to the excitation voltage, both of which can be made of powder or thin film electroluminescent materials. The technical focus of improving the performance of electroluminescent devices is to improve the light color purity and efficiency of electroluminescent materials.

[0003] Generally, phosphorescent materials have greater luminous efficiency than fluorescent materials, so phosphorescent materials are mostly used in the manufacture of org...

Claims

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