Effects of conductivity-enhancement reagents on self-healing properties of PEDOT:PSS films

被引：25

作者：

Xin, Xing ^{[1
]}

Xue, Zexu ^{[2
]}

Gao, Nan ^{[2
]}

Yu, Jiarui ^{[2
]}

Liu, Hongtao ^{[1
]}

Zhang, Wenna ^{[2
]}

Xu, Jingkun ^{[1
,2
]}

Chen, Shuai ^{[1
,3
]}

机构：

[1] Jiangxi Sci & Technol Normal Univ, Sch Chem & Chem Engn, Jiangxi Engn Lab Waterborne Coatings, Nanchang 330013, Jiangxi, Peoples R China

[2] Jiangxi Sci & Technol Normal Univ, Flexible Elect Innovat Inst, Nanchang 330013, Jiangxi, Peoples R China

[3] Univ Utah, Dept Mat Sci & Engn, Salt Lake City, UT 84112 USA

来源：

SYNTHETIC METALS | 2020年 / 268卷

基金：

中国国家自然科学基金;

关键词：

Conducting polymer; PEDOT:PSS; PEDOS; Self-healing; Organic electronics; ORGANIC SOLAR-CELLS; POLY 3,4-ETHYLENEDIOXYTHIOPHENE; POLYMERIZATION; PERFORMANCE; ADDITIVES; PEDOT/PSS; ROBUST; PSS;

D O I：

10.1016/j.synthmet.2020.116503

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Conducing polymers (CPs), poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) films, have shown excellent applications in the field of flexible electronics. In most cases, conductivity-enhancement reagents, such as popular dimethyl sulfoxide (DMSO), ethylene glycol (EG) and polyethylene glycol (PEG) have been demonstrated as necessary additives. However, their effects on the self-healing performances of such films were still unknown. Here, effects of these reagents as well as inorganic concentrated sulfuric acid (H2SO4) on the water-induced mechanical and electronic (conducive and thermoelectric) self-healing properties of PEDOT:PSS films were studied and corresponding mechanisms were illustrated. Meanwhile, analogous poly(3,4-ethylenedioxyselenophene):poly(styrene sulfonate) (PEDOS:PSS) film was investigated as a contrast. Treatment by EG showed 98 % recovery of conductivity and significantly reduced crack width after healing, while H2SO4 post-treatment only improved the self-healing of mechanical properties but significantly weakened the electrical properties. PEG or DMSO treatment showed negative influence on the self-healing of PEDOTs:PSS films. Since flexible electronic applications of PEDOTs:PSS films are highly inseparable from various additives or post-treatment, this initial research will help to clarify and optimize the synergy between electronic and self-healing behaviors.

引用

页数：8

共 35 条

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