Polycyclic aromatic compound
A polycyclic aromatic compound with specific structural features is used in the light-emitting layer to improve the efficiency and lifespan of organic electroluminescent devices by narrowing the emission peak width and enhancing quantum efficiency.
WO2026111556A1 Publication Date: 2026-05-28KYOTO UNIV +1
5 Cites 0 Cited by
Patent Information
- Application Number
- PCT/KR2025/095710
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2025-04-07
- Filing Date
- 2025-11-12
- Publication Date
- 2026-05-28
AI Technical Summary
Technical Problem
Existing organic electroluminescent devices require materials with improved emission characteristics, such as blue light emission and charge transport capabilities, to enhance efficiency and lifespan.
Method used
A polycyclic aromatic compound with a carbazole or benzofuran/benzothiophene ring condensed to a central framework containing boron and nitrogen, and deuterated xylyl substituents, is used in the light-emitting layer to achieve narrow emission peak width, high efficiency, and extended device lifespan.
Benefits of technology
The proposed compound enhances external quantum efficiency and narrows the full width at half maximum of the emission peak while improving the lifespan of organic electroluminescent devices.
✦ Generated by Eureka AI based on patent content.
Abstract
A polycyclic aromatic compound according to the present invention has a structure composed of one or two or more structural units represented by formula (1). In the polycyclic aromatic compound of the present invention, a carbazole ring and a benzofuran ring or benzothiophene ring represented by formula (b) and the like are fused on a central parent skeleton containing Y1 (for example, B) and nitrogen (N) in formula (1), and at least one of RNY1 to RNY3 has a group represented by formula (a).
Need to check novelty before this filing date? Find Prior Art