电子传输层材料及有机电致发光器件
By synergistically designing fluorene bridging groups and two triazine acceptor units, an electron transport layer material was prepared, solving the problems of low electron mobility and poor energy level matching in electron transport layer materials, and realizing a highly efficient and stable organic electroluminescent device.
CN121673237BActive 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
- 2026-02-09
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing organic electroluminescent devices suffer from problems such as low electron mobility, poor energy level matching, and poor stability in electron transport layer materials, which affect device efficiency and lifetime.
Method used
Electron transport layer materials were prepared by synergistic design of fluorene bridging groups and two triazine acceptor units. By adjusting the energy levels and improving the film morphology, the electron mobility and stability were improved.
Benefits of technology
Organic electroluminescent devices with high electron mobility, low driving voltage, and long lifetime have been achieved, improving luminous efficiency and reducing device performance degradation.
✦ Generated by Eureka AI based on patent content.
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Figure CN121673237B_ABST
Abstract
本发明属于有机电致发光器件技术领域，公开了一种电子传输层材料及有机电致发光器件，电子传输层材料中，其化合物结构主要由9‑烷基‑9‑苯基芴和两个三嗪基团构成，其中9‑烷基‑9‑苯基芴作为桥联基团、两个三嗪基团分别连接在9‑烷基‑9‑苯基芴基团的下方芴中的苯基和9‑号位上的苯基上。本发明采用通过芴桥联基团与两个三嗪受体单元的协同设计，实现了高电子迁移率、能级可调和优异薄膜形态，具有良好的电子传输功能，作为电子传输层材料，用其制备的有机电致发光器件具有低驱动电压，高发光效率和长使用寿命，同时效率滚降小。
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