A carbazole compound and an organic electroluminescent device

By designing carbazole compounds as the light-emitting layer material and optimizing their structure, the shortcomings of existing organic electroluminescent devices in terms of current efficiency and lifetime were solved, achieving the effects of lower driving voltage, higher current efficiency and longer lifetime.

CN122404205APending Publication Date: 2026-07-17FUYANG SINEVA MATERIAL TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
FUYANG SINEVA MATERIAL TECHNOLOGY CO LTD
Filing Date
2025-01-16
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing organic electroluminescent devices have not yet met the requirements for higher current efficiency and lifetime performance, and there is an urgent need to develop more types of materials to improve their performance.

Method used

A carbazole compound was designed and synthesized as a material for the light-emitting layer. By optimizing its structure, a high-performance carbazole compound was prepared and applied to organic electroluminescent devices.

Benefits of technology

This achieves lower driving voltage, higher current efficiency, and longer lifespan for organic electroluminescent devices, thus improving the overall performance of the devices.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明提供一种咔唑类化合物、中间体和有机电致发光器件。所述咔唑类化合物具有式I结构。本发明通过对咔唑类化合物的设计，制备得到了性能优异的咔唑类化合物，由此咔唑类化合物作为发光层的材料制备得到的有机电致发光器件具有较高的电流效率和较长的寿命。
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