A New Polymeric Triarylamine and Its Use as a Charge Transport Layer for Polymeric LEDs
A New Polymeric Triarylamine and Its Use as a Charge Transport Layer for Polymeric LEDs
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一种新型聚合三芳胺及其作为聚合物 LED 电荷传输层的用途
DOI：
10.1021/ma951021u
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发表时间：
1996
期刊：
影响因子：
5.5
通讯作者：
P. Mehta
中科院分区：
文献类型：
--
作者：
Eric S. Kolb;R. Gaudiana;P. Mehta
以N‘-联苯基-N，N-二苯胺为侧链的甲基丙烯酸酯单体为侧链，通过自由基聚合法合成了一种新型的电致发光元件用空穴注入聚合物。该聚合物在ITO电极上的循环伏安表明，在1.2V下发生了化学不可逆氧化，随后的循环表明新形成的物种在电化学上是稳定的。该聚合物在单层和双层器件中分别用作电致发光层和空穴注入层。以ITO为阳极，铝为阴极，聚[甲基(2-(1-丙烯基)乙基)硅氧烷]为电致发光层的双层器件，获得了明亮的蓝绿光，最大亮度为168cd/m2，内量子效率为0.20%。
A new hole injecting polymer for an electroluminescent element was prepared by radical polymerization of a methacrylate monomer that contains an N‘-biphenyl-N,N-diphenylamine unit as a pendent side chain. Cyclic voltammetry of the polymer coated on an ITO electrode shows a chemically irreversible oxidation at 1.2 V. Subsequent cycles reveal that the newly formed species is electrochemically stable. The polymer was used as both an electroluminescent layer and a hole injection layer in single- and double-layered devices, respectively. The double-layered device using ITO as the anode, Al as the cathode, and poly[methyl(2-(1-pyrenyl)ethyl)siloxane] as the electroluminescent layer gave bright blue-green light with a maximum brightness level of 168 cd/m2 and an internal quantum efficiency of 0.20%.