聚TPD电荷传输材料的制备与单层器件的电致发光

Poly-TPD for charge transport materials and electroluminescence of single layer devices

  • 摘要: 为了提高空穴传输材料TPD(三苯基二胺衍生物)的热稳定性和器件的寿命,用TPD通过Friedel-Crafts反应和二卤化合物进行缩聚,将TPD结构单元引入到聚合物的主链,得到了一系列具有电荷传输性能的新型电致发光聚合物.研究发现,所有聚合物的热稳定性均高于TPD,能带结构几乎没有发生改变,有的聚合物既能传输空穴,又能传输电子.考察了单层器件的发光性能.结果显示,器件最大亮度在17V时约为36cd·m-2,最大发射为460nm.

     

    Abstract: In order to enhance the thermal stability of TPD (Triphenylamines Derivatives) for hole transport materials and device durability, a series of novel electroluminescent polymers with charge transporting properties were synthesized by condensation polymerization using TPD with di-halide through the Friedel-Crafts reaction, which TPD units were introduced into the main chain of polymers. It was found that all poly-TPD had almost the same structure of energy band as that of TPD itself and had better thermal stability. Some of polymers can transport holes as well as electrons. Their properties for electroluminesence of single layer devices were investigated. The results show that the devices emitted the maximum luminescence of about 36 cd·m-2 at 17 V and the maximum emission of the device was 460 nm.

     

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