Neutral-pH PEDOT:PSS as over-coating layer for stable silver nanowire flexible transparent conductive films

被引：104

作者：

Chen, S. ^{[1
]}

Song, L. ^{[2
]}

Tao, Z. ^{[2
]}

Shao, X. ^{[1
]}

Huang, Y. ^{[1
]}

Cui, Q. ^{[1
]}

Guo, X. ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Dept Elect Engn, Natl Engn Lab TFT LCD Mat & Technol, Shanghai 200240, Peoples R China

[2] Shanghai OE Chem, Shanghai 200232, Peoples R China

来源：

ORGANIC ELECTRONICS | 2014年 / 15卷 / 12期

基金：

中国国家自然科学基金;

关键词：

Transparent conductive film; Silver nanowire; PEDOT:PSS; Stability; ORGANIC SOLAR-CELLS; COMPOSITE ELECTRODES; THIN-FILM; GRAPHENE OXIDE; ANNEALING-FREE; METAL-OXIDE; NETWORKS; DEVICES; NANOPARTICLES; STABILITY;

D O I：

10.1016/j.orgel.2014.09.047

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The silver nanowire (AgNW) mesh film with poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) as the over-coating layer is a promising flexible transparent conductive film technology. In this work, experimental studies show that the hygroscopic and acid properties of the common PEDOT: PSS lead to poor stabilities of the composite films, due to the conductivity degradation of PEDOT: PSS by the water absorption and the acid corrosion of AgNWs by PEDOT: PSS. By using the modified PEDOT: PSS of neutral pH as the over-coating layer, the long term shelf-life time, thermal and current stressing stabilities are all significantly improved without sacrifice of transparency, electrical conductivity and mechanical flexibility. Under both cases of thermal aging test at 210 degrees C for 20 min and 12 h continuous current stressing at a current density of 30 mA/cm(2), no obvious change of the conductivity is observed. The results clearly demonstrate that using the neutral-pH PEDOT: PSS as an over-coating layer can help to achieve flexible AgNW transparent conductive films with superior stability for flexible optoelectronic devices. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：3654 / 3659

页数：6

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