PEDOT:PSS Overcoating Layer for Mechanically and Chemically Stable Ag Nanowire Flexible Transparent Electrode

被引：7
作者：
Hwang, Byungil [1 ]
Lim, Sooman [2 ]
机构：
[1] BASF Elect R&D Ctr Asia, Suwon 16419, South Korea
[2] Chonbuk Natl Univ, Grad Sch Flexible & Printable Elect, Jeonju 54896, South Korea
来源：
JOURNAL OF NANOMATERIALS | 2017年 / 2017卷
关键词：
COMPOSITE ELECTRODE; FILMS; OXIDATION; NETWORKS; ROBUST;
D O I：
10.1155/2017/1489186
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We investigated the effect of poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT: PSS) deposition on the chemical and mechanical stability of Ag nanowire flexible electrodes. A large number of bending cycles, up to 500,000 cycles, were imposed on the Ag nanowire electrodes with andwithout PEDOT: PSS overcoating layer. In situ resistancemeasurement during bending tests revealed that the Ag nanowire electrode with PEDOT: PSS overcoating layer was mechanically reliable, showing a 21.9% increase in resistance after 500,000 cycles of bending. Scanning electron microscope images revealed that the failure of the Ag nanowire network occurred along with cracks initiated in the PEDOT: PSS layer, which resulted in the increase in resistance under bending. Furthermore, the PEDOT: PSS deposition enhanced the chemical stability of Ag nanowire electrode, which showed no significant increase in resistance after exposure in air for 50 days. Our study underscored that PEDOT: PSS is effective in protecting the Ag nanowires, while maintaining the high mechanical stability.
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页数：6
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共 29 条
[1]   Improved Thermal Oxidation Stability of Solution-Processable Silver Nanowire Transparent Electrode by Reduced Graphene Oxide [J].
Ahn, Yumi ;
Jeong, Youngjun ;
Lee, Youngu .
ACS APPLIED MATERIALS & INTERFACES, 2012, 4 (12) :6410-6414
[2]   Neutral-pH PEDOT:PSS as over-coating layer for stable silver nanowire flexible transparent conductive films [J].
Chen, S. ;
Song, L. ;
Tao, Z. ;
Shao, X. ;
Huang, Y. ;
Cui, Q. ;
Guo, X. .
ORGANIC ELECTRONICS, 2014, 15 (12) :3654-3659
[3]   The fracture of brittle thin films on compliant substrates in flexible displays [J].
Chen, Z ;
Cotterell, B ;
Wang, W .
ENGINEERING FRACTURE MECHANICS, 2002, 69 (05) :597-603
[4]   Mechanical flexibility of transparent PEDOT:PSS electrodes prepared by gravure printing for flexible organic solar cells [J].
Cho, Chung-Ki ;
Hwang, Woo-Jin ;
Eun, Kyoungtae ;
Choa, Sung-Hoon ;
Na, Seok-In ;
Kim, Han-Ki .
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2011, 95 (12) :3269-3275
[5]   Silver Nanowire Networks as Flexible, Transparent, Conducting Films: Extremely High DC to Optical Conductivity Ratios [J].
De, Sukanta ;
Higgins, Thomas M. ;
Lyons, Philip E. ;
Doherty, Evelyn M. ;
Nirmalraj, Peter N. ;
Blau, Werner J. ;
Boland, John J. ;
Coleman, Jonathan N. .
ACS NANO, 2009, 3 (07) :1767-1774
[6]   Metal nanogrids, nanowires, and nanofibers for transparent electrodes [J].
Hu, Liangbing ;
Wu, Hui ;
Cui, Yi .
MRS BULLETIN, 2011, 36 (10) :760-765
[7]   Effect of RGO deposition on chemical and mechanical reliability of Ag nanowire flexible transparent electrode [J].
Hwang, B. ;
Park, M. ;
Kim, T. ;
Han, S. M. .
RSC ADVANCES, 2016, 6 (71) :67389-67395
[8]   Highly Flexible and Transparent Ag Nanowire Electrode Encapsulated with Ultra-Thin Al2O3: Thermal, Ambient, and Mechanical Stabilities [J].
Hwang, Byungil ;
An, Youngseo ;
Lee, Hyangsook ;
Lee, Eunha ;
Becker, Stefan ;
Kim, Yong-Hoon ;
Kim, Hyoungsub .
SCIENTIFIC REPORTS, 2017, 7
[9]   Compression and tension bending fatigue behavior of Ag nanowire network [J].
Hwang, Byungil ;
Kim, Taegeon ;
Han, Seung Min .
EXTREME MECHANICS LETTERS, 2016, 8 :266-272
[10]   Highly Reliable Ag Nanowire Flexible Transparent Electrode with Mechanically Welded Junctions [J].
Hwang, Byungil ;
Shin, Hae-A-Seul ;
Kim, Taegeon ;
Joo, Young-Chang ;
Han, Seung Min .
SMALL, 2014, 10 (16) :3397-3404
123