NDLI: Annealing-free and strongly adhesive silver nanowire networks with long-term reliability by introduction of a nonconductive and biocompatible polymer binder

Content Provider	Royal Society of Chemistry (RSC)
Author	Jin, Yunxia Xiao, Fei Cheng, Yuanrong Kong, Lingqiang Deng, Dunying
Copyright Year	2014
Abstract	As a promising candidate to replace the brittle and expensive transparent indium tin oxide (ITO) conductor, the use of silver nanowire (AgNW) networks still involves issues such as high-temperature post-treatments and poor substrate adhesion for industrial application. Here a room-temperature soldering and one-step solution method is developed to achieve high-performance Ag nanowire transparent conductive films (TCFs). A nonconductive binder is prepared from poly(dopamine) and alginic acid which contains abundant catechol and carboxylic acid functional groups. The drying of the binder on the Ag nanowire percolation networks induces tighter contact among the nanowires and strong adhesion to the substrate, simultaneously enhancing the electrical and mechanical properties without a high-temperature annealing process. As a result, a highly conductive and bendable AgNW film is demonstrated on a low-cost polyethylene glycol terephthalate (PET) substrate, showing an 89% optical transmittance at λ = 550 nm and a sheet resistance of 16.3 Ohm sq−1. Its optical and electrical performances are superior to those obtained from the reported indium tin oxide (ITO) films. Moreover, the AgNW film exhibits strong adhesion to the substrate, maintaining its conductivity after 100 tape tests, and it still resists the tape test even after exposure to solvent for several hours. Most importantly, the film shows good reliability during long-term 85 °C/85% RH (relative humidity) aging, which has been rarely investigated although it is a critical requirement for industrial application. The advanced and wide-ranging features of the prepared AgNW film greatly contribute to its use as a transparent electrode in multifunctional flexible electronic devices.
Starting Page	4812
Ending Page	4818
Page Count	7
File Format	HTM / HTML PDF
ISSN	20403364
Volume Number	6
Issue Number	9
Journal	Nanoscale
DOI	10.1039/c3nr05820d
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Relative humidity Dopamine Electrode Polyethylene terephthalate Catechol Paint Transparent conducting film Polyethylene glycol Sheet resistance Tin Nanowire Percolation Solvent Nucleic acid thermodynamics
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology

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