A mixture, a composition and the use thereof in organic electronic devices
CN122122157APending Publication Date: 2026-05-29ZHEJIANG BRILLIANT OPTOELECTRONIC TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHEJIANG BRILLIANT OPTOELECTRONIC TECH CO LTD
- Filing Date
- 2024-04-19
- Publication Date
- 2026-05-29
AI Technical Summary
Technical Problem
Existing organic electronic devices have poor stability and short device life.
Method used
A mixture comprising the first compound H1 and the second compound H2 is adopted to form a type II semiconductor heterojunction structure through specific energy level matching and structural design, thereby improving the stability and lifetime of the device.
Benefits of technology
By cooperating with suitable guest materials, the luminous efficiency and life of organic electroluminescent devices are significantly improved, and a high-efficiency and long-life light emitting device material solution is provided.
✦ Generated by Eureka AI based on patent content.
Abstract
The application discloses a mixture, comprising: at least one first compound H1 represented by formula (I), and at least one second compound H2, preferably selected from a bis-carbazole derivative. The mixture or organic compound according to the application can improve device efficiency and device life as a phosphorescent light emitting host material. In particular, the organic mixture can well balance the hole and electron transport rates, realize low efficiency roll-off and long life of the OLED device under high brightness. Moreover, the material according to the application has a relatively simple synthesis process and low cost, thus having great application potential and application range. The application also relates to a composition and an organic electronic device, in particular, an organic electroluminescent device.
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