Tunable Dipolar Acenaphthopyrazine Derivatives Containing Diphenylamine
Tunable Dipolar Acenaphthopyrazine Derivatives Containing Diphenylamine
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DOI：
10.1021/cm049069m
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发表时间：
2004-11
影响因子：
8.6
通讯作者：
T. Huang;Jiann T. Lin
中科院分区：
文献类型：
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作者：
T. Huang;Jiann T. Lin
合成了一系列含二苯胺的并吩类吡嗪类化合物。这些化合物是无定形的，玻璃化转变温度从95°C到155°C。它们是强荧光的，发射从绿-黄到红色的区域。化合物的偶极性质导致了发射光谱上显著的溶剂变色效应。以这些化合物为空穴传输和发射材料，1，3，5-三(N-苯基苯并咪唑-2-基)苯(TPBI)或三(8-羟基喹啉)铝(Alq3)为电子传输层，制备了双层电致发光器件。以该化合物为发光材料，制备了多层器件。在多层器件中可以获得表现出良好性能(例如，λem=560−570 nm；ηext=2.0−2.6%；ηp=2.3−3.2 lm/W；ηc=6.5−8.3cd/A，电流密度为100 mA/cm 2)的绿-黄发光器件。
A series of acenaphthopyrazine derivatives containing diphenylamine were synthesized. These compounds are amorphous with glass transition temperatures ranging from 95 to 155 °C. They are highly fluorescent with emission in green-yellow to red region. The dipolar character of the compounds results in prominent solvatochromic effect on the emission spectra. Two-layer electroluminescent devices were fabricated using these compounds as hole-transporting and emitting materials, and 1,3,5-tris(N-phenylbenzimidazol-2-yl)benzene (TPBI) or tris(8-hydroxyquinoline)aluminum (Alq3) as the electron-transporting layer. Multilayer devices were also fabricated using the compounds as the emitting materials. Green-yellow-emitting devices exhibiting good performance (e.g., λem = 560−570 nm; ηext = 2.0−2.6%; ηp = 2.3−3.2 lm/W; ηc = 6.5−8.3 cd/A at a current density of 100 mA/cm2) can be achieved in multilayered devices.