Positively-charged reduced graphene oxide as an adhesion promoter for preparing a highly-stable silver nanowire film
- Authors
- Sun Q.[Sun Q.]; Lee S.J.[Lee S.J.]; Kang H.[Kang H.]; Gim Y.[Gim Y.]; Park H.S.[Park H.S.]; Cho J.H.[Cho J.H.]
- Issue Date
- 2015
- Citation
- Nanoscale, v.7, no.15, pp.6798 - 6804
- Journal Title
- Nanoscale
- Volume
- 7
- Number
- 15
- Start Page
- 6798
- End Page
- 6804
- URI
- https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/49471
- DOI
- 10.1039/c5nr00777a
- Abstract
- An ultrathin conductive adhesion promoter using positively charged reduced graphene oxide (rGO-NH3 +) has been demonstrated for preparing highly stable silver nanowire transparent conductive electrodes (AgNW TCEs). The adhesion promoter rGO-NH3 +, spray coated between the substrate and AgNWs, significantly enhances the chemical and mechanical stabilities of the AgNW TCEs. Besides, the ultrathin thickness of the rGO-NH3 + ensures excellent optical transparency and mechanical flexibility for TCEs. The AgNW films prepared using the adhesion promoter are extremely stable under harsh conditions, including ultrasonication in a variety of solvents, 3M Scotch tape detachment test, mechanical bending up to 0.3% strain, or fatigue over 1000 cycles. The greatly enhanced adhesion force is attributed to the ionic interactions between the positively charged protonated amine groups in rGO-NH3 + and the negatively charged hydroxo- and oxo-groups on the AgNWs. The positively charged GO-NH3 + and commercial polycationic polymer (poly allylamine hydrochloride) are also prepared as adhesion promoters for comparison with rGO-NH3 +. Notably, the closely packed hexagonal atomic structure of rGO offers better barrier properties to water permeation and demonstrates promising utility in durable waterproof electronics. This work offers a simple method to prepare high-quality TCEs and is believed to have great potential application in flexible waterproof electronics. This journal is © The Royal Society of Chemistry.
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Collections - Graduate School > SKKU Advanced Institute of Nano Technology > 1. Journal Articles
- Engineering > School of Chemical Engineering > 1. Journal Articles
- SKKU Advanced Institute of Nano Technology > ETC > 1. Journal Articles
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