Oxidation-resistant silver nanostructures for ultrastable plasmonic applications

R Sachan; V Ramos; A Malasi; S Yadavali; B Bartley; H Garcia; G Duscher; R Kalyanaraman

doi:10.1002/adma.201204920

Oxidation-resistant silver nanostructures for ultrastable plasmonic applications

Adv Mater. 2013 Apr 11;25(14):2045-50. doi: 10.1002/adma.201204920. Epub 2013 Feb 18.

Authors

R Sachan¹, V Ramos, A Malasi, S Yadavali, B Bartley, H Garcia, G Duscher, R Kalyanaraman

Affiliation

¹ Department of Materials Science and Engineering, University of Tennessee, Knoxville, TN 37996, USA.

PMID: 23417783
DOI: 10.1002/adma.201204920

Abstract

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.

Publication types

Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.