A compound and organic electroluminescent device thereof

By developing a compound with high triplet energy level and suitable energy level as an electron transport material, the problem of low electron mobility in OLEDs was solved, the luminous efficiency and lifetime of OLEDs were improved, and the performance of the device was enhanced.

CN116640127BActive 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
2023-05-29
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The low electron mobility and poor stability of electron transport materials in existing OLED materials limit the improvement of OLED performance, especially in terms of driving voltage, luminous efficiency and lifespan.

Method used

A compound with a high triplet energy level, suitable HOMO and LUMO energy levels is developed for use as an electron transport material and hole blocking material in OLED devices to improve electron mobility, reduce driving voltage, and enhance luminous efficiency.

Benefits of technology

This compound improves the electron mobility of OLED devices, reduces the driving voltage, enhances luminous efficiency, and increases device lifetime, while exhibiting good thermal stability and application prospects.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a compound and an organic electroluminescent device thereof, and relates to the technical field of organic electroluminescent materials.The compound of chemical formula 1 has a high triplet energy level, which can be used as a host material in a light-emitting layer to balance holes and electrons in the device; on the other hand, the compound has a high electron mobility, can be applied to an electron transport region in the organic electroluminescent device, and is easy to transport electrons; meanwhile, the compound also has a certain hole blocking effect. The excellent properties of the compound make the organic electroluminescent device exhibit excellent photoelectric performance, specifically, the organic electroluminescent device has a low driving voltage, a high luminous efficiency and a long service life.
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