一种有机电致发光材料及含有双主体材料的有机电致发光器件
By using dual-host organic electroluminescent materials with indole-carbazole and triazine structures, the problems of high driving voltage, low luminous efficiency and short lifetime in the prior art have been solved, realizing more efficient and longer-life organic electroluminescent devices.
CN119751459BActive Publication Date: 2026-07-17JILIN OPTICAL & ELECTRONICS MATERIALS CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JILIN OPTICAL & ELECTRONICS MATERIALS CO LTD
- Filing Date
- 2024-09-20
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing organic electroluminescent devices suffer from problems such as high driving voltage, low luminous efficiency, and short lifespan, which affect their application in display and lighting products.
Method used
A dual-host organic electroluminescent material containing indole-carbazole and triazine structures is used. By using the dual-host material, triplet excitons are dispersed on two hosts, which reduces triplet-triplet annihilation, lowers the driving voltage, and improves luminous efficiency and lifetime.
Benefits of technology
It effectively reduces the driving voltage of organic electroluminescent devices while improving luminous efficiency and lifespan.
✦ Generated by Eureka AI based on patent content.
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Figure CN119751459B_ABST
Abstract
本发明提供一种有机电致发光材料及含有双主体材料的有机电致发光器件，所述有机电致发光主体材料的结构通式如通式1所示，本发明的通式1化合物结构的立体规整性好，避免了结构蒸镀过程中由于结构平面堆积导致的聚集猝灭效应，提高了寿命；同时立体规整性更强的结构有效的降低了蒸镀温度，保证了材料蒸镀过程中的热稳定性，提高了材料使用寿命。本发明的有机电致发光器件通过使用双主体材料将三线态激子分散在两个主体上，减少三重态‑三重态湮灭，在降低有机电致发光器件驱动电压的同时，又能提高器件的发光效率和使用寿命。
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