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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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Silver nanowires: Synthesis technologies, growth mechanism and multifunctional applications
TL;DR: In this article, the definition and characterization of silver nanowires are introduced, and the synthetic methods employed to prepare silver nanoparticles and the factors that influence their final morphology are discussed.
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Efficient Flexible Phosphorescent Polymer Light‐Emitting Diodes Based on Silver Nanowire‐Polymer Composite Electrode
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The Many “Facets” of Halide Ions in the Chemistry of Colloidal Inorganic Nanocrystals
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Advanced 3D Current Collectors for Lithium-Based Batteries.
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Achieving a high fill factor for organic solar cells
TL;DR: In this article, the authors focus on the third parameter, fill factor (FF), that is equally important in determining the power conversion efficiency of organic photovoltaics, and provide a strategy toward a high FF for OPVs from the viewpoints of device design and material synthesis.
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