A highly conductive PEDOT:PSS film with the dipping treatment by hydroiodic acid as anode for organic light emitting diode

被引：45
作者：
Wu, Xinkai
Liu, Jun
He, Gufeng [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Natl Engn Lab TFT LCD Mat & Technol, Shanghai 200240, Peoples R China
来源：
ORGANIC ELECTRONICS | 2015年 / 22卷
基金：
中国国家自然科学基金;
关键词：
Hydriodic acid; PEDOT:PSS; Flexible OLED; POLYMER SOLAR-CELLS; GRAPHENE OXIDE; PERFORMANCE; ELECTRODE; LAYER; OLEDS;
D O I：
10.1016/j.orgel.2015.03.048
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A highly conductive, transparent and uniform poly (3,4-ethylenedioxythiophene): poly (styrenesulfonate) (PEDOT:PSS) film has been developed by dipping treatment with hydriodic acid (HI) solution. The HI-treated PEDOT: PSS film can reach a sheet resistance of 68 Omega per square and a transmittance of 87% at 550 nm. The conductivity enhancement for the HI-treated film is ascribed to the permeation of proton and iodine anion of HI into PEDOT: PSS film, resulting in the separation of PSS and PEDOT chains. The phase separation of PSS and PEDOT can provide more conductive pathways for carriers to improve conductivity of the film. Using the optimized HI-treated PEDOT: PSS film as anode, we have fabricated indium tin oxide (ITO)-free organic light emitting diode (OLED), which shows better performance than the device with ITO as anode. This proves that such PEDOT: PSS film with the dipping treatment by HI solution is a promising alternative to ITO for low cost, transparent and flexible OLED application. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：160 / 165
页数：6
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