Organometallic compound and preparation method and application thereof

By introducing specific functional groups into organometallic compounds and adjusting their electrochemical properties, the efficiency and lifetime issues of organic electroluminescent devices have been solved, achieving device performance with low voltage, high efficiency, and long lifetime.

CN121991133APending Publication Date: 2026-05-08JILIN OPTICAL & ELECTRONICS MATERIALS CO LTD
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Patent Information

Application Number
CN202411582066.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-07
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing organic electroluminescent devices have not yet met the high-performance requirements in terms of efficiency, lifespan, and voltage, making it difficult to meet the development needs of new display and lighting technologies.

Method used

Organometallic compounds with specific structures can be used to adjust the electrochemical properties of compounds by introducing functional groups such as benzene and biphenyl onto the dibenzofuran ring host and adding electron-withdrawing groups such as cyano or methyl groups, thereby reducing the start-up voltage and improving luminescence efficiency and lifetime.

Benefits of technology

The starting voltage of organic electroluminescent devices has been reduced, improving luminous efficiency and lifespan, thus meeting the comprehensive performance requirements of high efficiency and long lifespan.

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Abstract

The invention discloses an organic metal compound as well as a preparation method and application thereof, and relates to the technical field of organic electroluminescence. Functional groups such as benzene and biphenyl are introduced to a dibenzofuran ring main body, and electron withdrawing groups such as cyano or methyl are added to a benzene ring, so that compared with a contrast compound, the compound provided by the invention has the advantages that the molecular configuration is changed, a conjugated system is enlarged, and the electrochemical characteristics of the compound are adjusted; after the obtained organic compound is applied to the organic electroluminescent device, the starting voltage of the device is reduced, the luminous efficiency of the device is improved, and the service life of the device is prolonged.
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