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|e rakwb
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|a eng
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|a Magdassi, Shlomo
|e verfasserin
|4 aut
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|a Ring stain effect at room temperature in silver nanoparticles yields high electrical conductivity
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|c 2005
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Date Completed 04.05.2007
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|a Date Revised 02.11.2005
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a We demonstrate that metallic rings formed spontaneously at room temperature via evaporation of aqueous drops containing silver nanoparticles (20-30 nm in diameter) exhibit high electrical conductivity (up to 15% of that for bulk silver). The mechanism underlying this self-assembly phenomena is the "ring stain effect", where self-pinning is combined with capillary flow to form a ring consisting of close-packed metallic nanoparticles along the perimeter of a drying droplet. Our macroscopic and microscopic (applying conductive atomic force microscopy) transport measurements show that the conductivity of the ring, which has a metallic brightness, is orders of magnitude larger than that of corresponding aggregates developed without the ring formation, where high conductivity is known to appear only after annealing at high temperature
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|a Letter
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|a Grouchko, Michael
|e verfasserin
|4 aut
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|a Toker, Dana
|e verfasserin
|4 aut
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|a Kamyshny, Alexander
|e verfasserin
|4 aut
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|a Balberg, Isaac
|e verfasserin
|4 aut
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|a Millo, Oded
|e verfasserin
|4 aut
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 21(2005), 23 vom: 08. Nov., Seite 10264-7
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|x 1520-5827
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|g volume:21
|g year:2005
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|g day:08
|g month:11
|g pages:10264-7
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