A carbazole-containing compound and an organic electroluminescent device thereof

By using carbazole-containing compounds as a capping layer material in OLED devices, the problems of low light extraction efficiency and poor stability of top-emitting OLED devices have been solved, achieving higher light extraction efficiency and stability.

CN121824554BActive Publication Date: 2026-06-26CHANGCHUN HYPERIONS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHANGCHUN HYPERIONS TECH CO LTD
Filing Date
2026-03-13
Publication Date
2026-06-26

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Abstract

The application provides a carbazole compound and an organic electroluminescent device thereof, and particularly relates to the technical field of organic electroluminescent materials.The application provides a carbazole-containing compound, which has a suitable molecular weight, a relatively balanced evaporation temperature and refractive index, can inhibit the loss of outgoing light caused by total reflection, and has good stability; when applied to a cover layer material, the carbazole-containing compound can effectively improve and enhance the light extraction efficiency, and can improve the luminous efficiency and service life of a device.
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