Silver Nanowire-IZO-Conducting Polymer Hybrids for Flexible and Transparent Conductive Electrodes for Organic Light-Emitting Diodes

Solution-processed silver nanowire (AgNW) has been considered as a promising material for next-generation flexible transparent conductive electrodes. However, despite the advantages of AgNWs, some of their intrinsic drawbacks, such as large surface roughness and poor interconnection between wires, l...

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Bibliographic Details
Published in:Scientific reports 2016-10, Vol.6 (1), p.34150-34150, Article 34150
Main Authors: Yun, Ho Jun, Kim, Se Jung, Hwang, Ju Hyun, Shim, Yong Sub, Jung, Sun-Gyu, Park, Young Wook, Ju, Byeong-Kwon
Format: Article
Language:English
Subjects:
639/301/357/1016
639/925/927/1007
Corrosion
Electrical properties
Electrodes
Humanities and Social Sciences
Hybrids
Indium
Mechanical properties
multidisciplinary
Nanotechnology
Organic light emitting diodes
Oxidation
Polymers
Science
Silver
Tin
Tin oxide
Transmittance
Zinc oxide
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Summary:Solution-processed silver nanowire (AgNW) has been considered as a promising material for next-generation flexible transparent conductive electrodes. However, despite the advantages of AgNWs, some of their intrinsic drawbacks, such as large surface roughness and poor interconnection between wires, limit their practical application in organic light-emitting diodes (OLEDs). Herein, we report a high-performance AgNW-based hybrid electrode composed of indium-doped zinc oxide (IZO) and poly (3,4-ethylenediowythiophene):poly(styrenesulfonate) [PEDOT:PSS]. The IZO layer protects the underlying AgNWs from oxidation and corrosion and tightly fuses the wires together and to the substrate. The PEDOT:PSS effectively reduces surface roughness and increases the hybrid films’ transmittance. The fabricated electrodes exhibited a low sheet resistance of 5.9 Ωsq −1 with high transmittance of 86% at 550 nm. The optical, electrical, and mechanical properties of the AgNW-based hybrid films were investigated in detail to determine the structure-property relations, and whether optical or electrical properties could be controlled with variation in each layer’s thickness to satisfy different requirements for different applications. Flexible OLEDs (f-OLEDs) were successfully fabricated on the hybrid electrodes to prove their applicability; their performance was even better than those on commercial indium doped tin oxide (ITO) electrodes.
ISSN:2045-2322
2045-2322
DOI:10.1038/srep34150