Polymeric anodes for improved polymer light-emitting diode performance
Polymeric anodes for improved polymer light-emitting diode performance
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DOI：
10.1063/1.118953
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发表时间：
1997-04-21
影响因子：
4
通讯作者：
Scott, JC
中科院分区：
文献类型：
--
作者：
Carter, SA;Angelopoulos, M;Scott, JC
我们研究了聚苯胺和聚乙烯二氧噻吩透明电极作为聚合物发光二极管的空穴注入阳极。在阳极中掺杂各种聚合物和单体酸，并从水或有机溶剂中浇铸，以确定掺杂剂和溶剂对空穴注入性能的影响。我们发现，与小分子掺杂相比，聚合物掺杂的阳极提高了器件的量子效率和亮度，与导电性、溶剂或导电聚合物的类型无关。对于大多数导电聚合物阳极[sigma bbb20（欧姆cm）（-1）]，二极管可以在没有氧化铟锡衬底的情况下制造。这些二极管显示出明显较慢的退化。(C) 1997年美国物理研究所。
We have studied polyaniline and polyethylenedioxythiophene transparent electrodes for use as hole-injecting anodes in polymer light emitting diodes. The anodes were doped with a variety of polymer and monomer-based acids and cast from either water or organic solvents to determine the effect of the dopant and solvent on the hole-injection properties. We find that the anodes with polymeric dopants have improved device quantum efficiency and brightness relative to those with small molecule dopants, independent of conductivity, solvent, or type of conducting polymer. For the most conducting polymer anodes [sigma>2(Ohm cm)(-1)], diodes could be made without an indium tin oxide underlayer. These diodes show substantially slower degradation. (C) 1997 American Institute of Physics.