一个素支持的Cu2 ((mu-NAr2) 2钻石芯的E型延迟光:在OLED中收集单元和三元刺激子
Joseph C Deaton1, Steven C Switalski, Denis Y Kondakov
1Eastman Kodak Company, Rochester, New York 14650, USA. jdeaton1@rochester.rr.com
Journal of the American Chemical Society
|June 19, 2010
概括
一个新的铜I复合体表现出高效的E型延迟光,通过采集三重激子,使有机发光二极管 (OLED) 的高外部量子效率成为可能.
科学领域:
- 材料科学 材料科学 材料科学
- 光物理学的光学物理学
- 有机电子 有机电子
背景情况:
- 有机发光二极管 (OLED) 对显示器和照明至关重要.
- 在OLED技术中,高效地收集三重激子仍然是一个挑战.
- 延迟光提供了一条利用三重激子的途径.
研究的目的:
- 为了合成和表征一种新的双核铜 (I) 复合物,用于OLED应用.
- 为了研究复杂的光物理特性,特别是延迟光,复杂的.
- 为了评估该复合物的性能作为蒸汽沉积OLED中的排放剂.
主要方法:
- 可变温度排放光谱学可变温度排放光谱
- 光发光衰变的测量方法
- 理论计算 (DFT) 的方法
- 蒸汽沉积OLED的设备制造和特征.
- 电检测电子偏磁共振 (EPR) 是一种电学检测的电子偏磁共振.
- 循环电压计是循环电压计.
主要成果:
- 合成了一种具有高排放性的双核铜酸二胺复合物,其量子产量为57%.
- 该综合体展示了E型延迟光,归因于具有小单元-三元能量差距的电荷转移状态.
- 与该复合物合的蒸汽沉积OLED实现了最大的外部量子效率16.1%.
结论:
- 铜 (I) 复合物通过OLED的延迟光效应有效地收集三重激子.
- 这项工作表明了开发使用铜复合体的高效光OLED的有希望的策略.
- 该研究通过各种物理探测方法提供了对OLED中排放性剂的功能的见解.
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