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含有基的高性能基化合物的设计策略及其在可溶液加工的有机发光装置中的应用
Fred Ka-Wai Kong1, Man-Chung Tang1, Yi-Chun Wong1
1Department of Chemistry, The University of Hong Kong , Pokfulam Road, Hong Kong, China.
Journal of the American Chemical Society
|May 5, 2016
概括
新的 (II) 复合物与碳素树枝使得高效的可溶液处理的有机发光二极管 (OLED) 成为可能. 这些材料实现了高量子产量和稳定的发射,与真空沉积器件相竞争.
科学领域:
- 材料科学
- 有机电子
- 摄影化学
背景情况:
- 有机发光二极管 (OLED) 对于先进的显示和照明技术至关重要.
- 开发高效且可解决的材料是降低制造成本和实现灵活电子的关键.
- (II) 复合物为高效的OLED提供了有前途的光特性.
研究的目的:
- 合成和描述含有基的新型发光树突复合物.
- 研究它们在可溶液处理的OLED中作为光剂的潜力.
- 评估碳酸盐树枝对固态排放特性和设备性能的影响.
主要方法:
- 合成和表征新的 (II) 复合物,其中包括基.
- 使用这些复合物作为螺旋涂层的有机发光装置 (OLED) 的制造.
- 光发光光谱和设备性能测试 (外部量子效率,辐射光谱).
主要成果:
- 合成的 (II) 复合物在薄膜中表现出高光发光量 (高达80%).
- 碳酸盐树枝有效抑制分子间相互作用,在固态膜中保持类似溶液的发射光谱.
- 制造的可溶液处理的OLED实现了10.4%的最大外部量子效率,与真空沉积器件相美.
结论:
- 含有甲基的基复合物是高性能,可处理溶液的OLED的有效光剂.
- 分子设计策略成功地提高了固态发光和设备效率.
- 这些发现代表了使用 (II) 复合物的成本效益和可扩展的OLED制造的重大进步.
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