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Scalable Coating and Properties of Transparent, Flexible, Silver Nanowire
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TLDR
The overall properties of transparent Ag NW electrodes meet the requirements of transparent electrodes for many applications and could be an immediate ITO replacement for flexible electronics and solar cells.Abstract:
We report a comprehensive study of transparent and conductive silver nanowire (Ag NW) electrodes,includingascalablefabricationprocess,morphologies,andoptical,mechanicaladhesion,andflexibility properties, and various routes to improve the performance. We utilized a synthesis specifically designed for long andthinwiresforimprovedperformanceintermsofsheetresistanceandopticaltransmittance.Twenty/sqand 80% specular transmittance, and 8 ohms/sq and 80% diffusive transmittance in the visible range are achieved, whichfallinthesamerangeasthebestindiumtinoxide(ITO)samplesonplasticsubstratesforflexibleelectronics andsolarcells.TheAgNWelectrodesshowopticaltransparenciessuperiortoITOfornear-infraredwavelengths(2- foldhighertransmission).Owingtolightscatteringeffects,theAgNWnetworkhasthelargestdifferencebetween diffusive transmittance and specular transmittance when compared with ITO and carbon nanotube electrodes, a propertywhichcouldgreatlyenhancesolarcellperformance.AmechanicalstudyshowsthatAgNWelectrodeson flexiblesubstratesshowexcellentrobustnesswhensubjectedtobending.Wealsostudytheelectricalconductance ofAgnanowiresandtheirjunctionsandreportafacileelectrochemicalmethodforaAucoatingtoreducethewire- to-wire junction resistance for better overallfilm conductance. Simple mechanical pressing was also found to increasetheNWfilmconductanceduetothereductionofjunctionresistance.Theoverallpropertiesoftransparent Ag NW electrodes meet the requirements of transparent electrodes for many applications and could be an immediate ITO replacement forflexible electronics and solar cells.read more
Citations
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References
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Journal ArticleDOI
Silver Nanowire Networks as Flexible, Transparent, Conducting Films: Extremely High DC to Optical Conductivity Ratios
Sukanta De,Thomas M. Higgins,Philip E. Lyons,Evelyn M. Doherty,Peter N. Nirmalraj,Werner J. Blau,John J. Boland,Jonathan N. Coleman +7 more
TL;DR: These nanowire films are electromechanically very robust, with all but the thinnest films showing no change in sheet resistance when flexed over >1000 cycles, which makes these films ideal as replacements for indium tin oxide as transparent electrodes.
Journal ArticleDOI
Crystalline Silver Nanowires by Soft Solution Processing
TL;DR: In this paper, a soft solution-phase approach to the large-scale synthesis of uniform nanowires of bicrystalline silver whose lateral dimensions could be controlled in the range of 30−40 nm, and lengths up to ∼50 μm.
Journal ArticleDOI
Criteria for Choosing Transparent Conductors
TL;DR: In this article, the physical properties of these materials are reviewed and compared, and a comparison of their properties can be found in Section 5.2.1] and Section 6.1.
Journal ArticleDOI
Transparent Conducting Oxides
David S. Ginley,Clark Bright +1 more
TL;DR: In the interim between the conception of this issue of MRS Bulletin on transparent conducting oxides and its publication, remarkable applications dependent on these materials have continued to make sweeping strides.
Journal ArticleDOI
Percolation in transparent and conducting carbon nanotube networks
TL;DR: In this paper, a uniform single-walled carbon nanotube networks of varying densities have been fabricated at room temperature by a vacuum filtration method, and measurements of the sheet conductance as a function of the network density show 2D percolation behavior.