功能性无形材料的新设计:扭曲的烯功能化双乙烯的合成和发热和发光特性
Jarugu Narasimha Moorthy1, Parthasarathy Venkatakrishnan, Palani Natarajan
1Department of Chemistry, Indian Institute of Technology, Kanpur 208 016, India. moorthy@iitk.ac.in
Journal of the American Chemical Society
|November 28, 2008
概括
开发了基于双基架的新型无形功能材料. 这些材料具有高热稳定性和可调节的发光,使高效的有机发光二极管 (OLED) 设备具有高发光率和效率.
科学领域:
- 材料科学 材料科学 材料科学
- 有机化学 有机化学
- 固态物理 固态物理
背景情况:
- D(2d) - 对称的刚性四二二乙很难在固态中包装.
- 利用双基的结晶倾向是设计新材料的关键.
研究的目的:
- 设计和合成具有高玻璃过渡温度和热稳定的新型无形功能材料.
- 研究这些材料的光发光和电发光特性.
- 为了证明它们在有机发光二极管 (OLED) 设备中的应用.
主要方法:
- 使用易于Pd(0) 介导的交叉合策略,制备了烯功能化双基.
- 无形性质的特征,包括玻璃过渡温度 (Tg) 和分解温度 (Td).
- 使用合成材料制造和测试OLED设备.
主要成果:
- 合成了一系列2倍和4倍的炭功能化双 (1-7),表现出优异的无形性质 (Tg = 190-330 °C) 和高热稳定性 (Td > 400 °C).
- 发光性质 (发射波长和量子产量) 是通过修改 antracen 光体来调整的,从双基核的通信是可以忽略的.
- 使用双重功能衍生品 (1和2) 制造的OLED设备显示出高效率,低启动电压和纯蓝光辐射,其中一个设备达到~13,900 cd/m2的亮度.
结论:
- 基于双基基架的新型无形功能材料可以很容易地制备,并表现出出色的热和无形性能.
- 这些材料适合OLED应用,提供可调节的排放特性和高设备性能.
- 这项研究表明,这种新型无形分子类型在先进的电子设备中具有更广泛的适用性.
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