Oxidation-Resistant Silver Nanostructures for Ultrastable Plasmonic Applications

Oxidation-Resistant Silver Nanostructures for Ultrastable Plasmonic Applications

Reduced degradation (oxidation) of silver nanoparticles (NPs) is achieved by contacting Ag with immiscible Co NPs. The relative decay of the plasmon peak (plot) shows that pure Ag NPs (blue dashed curve) decay by 25% in ca 20 days, whereas AgCo NPs last about 10 times longer, requiring nearly five m...

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Veröffentlicht in:Advanced materials (Weinheim) 2013-04, Vol.25 (14), p.2045-2050
Hauptverfasser: Sachan, R., Ramos, V., Malasi, A., Yadavali, S., Bartley, B., Garcia, H., Duscher, G., Kalyanaraman, R.
Format: Artikel
Sprache:eng
Schlagworte:
bimetallic nanoparticles
Decay
Nanocomposites
Nanomaterials
nanoparticle arrays
Nanoparticles
Nanostructure
Oxidation resistance
Plasmonics
Silver
surface plasmons
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Beschreibung
Zusammenfassung:Reduced degradation (oxidation) of silver nanoparticles (NPs) is achieved by contacting Ag with immiscible Co NPs. The relative decay of the plasmon peak (plot) shows that pure Ag NPs (blue dashed curve) decay by 25% in ca 20 days, whereas AgCo NPs last about 10 times longer, requiring nearly five months for a similar decay (red solid curve). The TEM images for both Ag and AgCo were taken after 50 days of storage under ambient conditions.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201204920