非常稳定的红光发射电化学电池
Cathrin D Ertl1, Cristina Momblona2, Antonio Pertegás2
1Department of Chemistry, University of Basel , Spitalstrasse 51, CH-4056 Basel, Switzerland.
Journal of the American Chemical Society
|February 4, 2017
概括
新的 (III) 复合物对高稳定的发光电化学电池 (LEC) 具有高效的红色发射. 结合物修改提高了性能,一些设备的运行时间超过6000小时.
科学领域:
- 协调化学
- 材料科学
- 有机电子
背景情况:
- 在开发高效的有机发光器件方面,循环金属化 (III) 复合物至关重要.
- 调整连接体结构是优化光物理性质和设备稳定的关键.
- 发光电化学电池 (LEC) 由于其更简单的设备架构,为传统的OLED提供了有希望的替代方案.
研究的目的:
- 用量身定制的配体合成和表征新型环金属化 (III) 复合物.
- 研究这些复合体作为LEC中的红色发射体的结构性质关系.
- 评估连接物修饰对光发光和装置性能,特别是稳定性的影响.
主要方法:
- 一系列新的循环金属化 (III) 复合物的合成,标记为[Ir ((ppy) 2(NN) ]PF6.
- 使用单晶X射线衍射对特定复合体进行结构性表征.
- 使用这些复合物在活性层中制造和测试发光电化学电池 (LEC).
主要成果:
- 成功合成并描述了七种新的 (III) 复合物.
- 从合成的复合物中证明了有效的红色排放.
- 获得高度稳定的红色发射LEC,特定复合体的器件寿命超过1000,4000和6000小时 (分别为[Irppy]2和[L1]][PF6,[Irppy]2和[Irppy]6).
结论:
- 合成的环金属化 (III) 复合物是LEC应用中的有效红色发射剂.
- 连接物设计显著影响了产生的LEC的光发光和运行稳定性.
- 开发的复合物为下一代,长期发射红色的电化学装置铺平了道路.
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