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Fully Alloying AuAg Nanorods in a Photothermal Nano-Oven: Superior Plasmonic Property and Enhanced Chemical Stability.


ABSTRACT: Fully alloyed metallic nanomaterials have attracted much attention because of the superior chemical and physical properties to their single components. However, it has been difficult to make fully alloyed anisotropic nanostructures due to the required high energy input. Here we present the preparation of fully alloyed AuAg nanorods by using a photothermal nano-oven, in which Au@Ag nanorods can convert absorbed light to thermal energy while the silica shell can act as both the thermal insulator and protective layer to facilitate the alloying process. The as-prepared AuAg nanorods showed enhanced plasmonic property stemming from silver and much higher chemical stability in a corrosive environment derived from gold. This method opens up a new approach for the preparation of plasmonic nanostructures with desired properties.

SUBMITTER: Cao M 

PROVIDER: S-EPMC6643946 | biostudies-literature |

REPOSITORIES: biostudies-literature

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