通过Knoevenagel缩合或Sonogashira偶联反应合成了一系列具有不同噻吩和戊烯取代基的BODIPY衍生物,并通过1 H和13 C NMR光谱和HRMS对其进行了表征。通过紫外可见吸收光谱,稳态和时间分辨荧光光谱,双光子激发光谱和循环伏安法研究了它们的光物理和电化学性质。这些共轭染料在红色至近红外区域显示出色的单光子光物理性质,包括大的消光系数和在二氯甲烷溶液中的高荧光量子产率。它们还表现出显着的两光子吸收截面σ2 。
Efficient blue lighting materials based on truxene-cored anthracene derivatives for electroluminescent devices
摘要:
A new series of anthracene derivatives containing a truxene moiety as the core have been synthesized and characterized. They emit in the blue region with excellent solution fluorescence quantum yields and possess high thermal decomposition temperature (T-d>458 degrees C). Typical electroluminescence performance was demonstrated by 2-[10-(4-(1-napthenyl)phenyl)anthracene-9-yl]-5,5',10,10',15,15'-hexaethyltruxene (NPAT) as the blue lighting material in the OLED with structure of ITO/CFx/NPAT/TPBI or Alq(3)/LiF/Al, where TPBI and Alq(3) are 1,3,5-tri(N-phenylbenzimidazol-2-yl)-benzene and tris(8-hydroxyquinolinato) aluminum, respectively. Additionally, the effects of the different thickness of the different electron transporting layers on the device performance were investigated. (C) 2010 Elsevier Ltd. All rights reserved.