Substituted phenanthrolines and their use
By using substituted phenanthroline compounds as charge generation layer materials in organic electroluminescent devices, combined with metallic Li or Yb, the shortcomings of the devices in terms of luminous efficiency and lifetime are solved, achieving efficient charge generation and improved thermal stability, thus extending the device lifetime.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- YANTAI XIANHUA CHEM TECH CO LTD
- Filing Date
- 2025-01-16
- Publication Date
- 2026-07-17
AI Technical Summary
Existing organic electroluminescent devices have shortcomings in terms of luminous efficiency and lifespan. In particular, how to select efficient charge generation layer materials to improve device performance in multilayer devices is an urgent problem to be solved.
By using substituted phenanthroline compounds as charge generation layer materials and combining them with metallic Li or Yb, the composition and thickness of the charge generation layer are optimized to improve charge generation capability and material planar rigidity, thereby extending device lifespan.
This improves the luminous efficiency of organic electroluminescent devices, enhances the thermal stability and crystallization temperature of the compound, extends the lifespan of the device, and provides excellent display effects.
Smart Images
Figure CN122404320A_ABST