Gold Nanorods: High‐Yield Assembly of Soluble and Stable Gold Nanorod Pairs for High‐Temperature Plasmonics (Small 7/2012)

Colloidal approaches to discrete plasmonic architectures offer numerous advantages with respect to lithography; however, scale-up, purity, and yield has been challenging. Reversibly controlling surface interactions throughout aqueous assembly affords methods that address these challenges. The false-color image illustrates the crude product of soluble, compositionally discrete Au nanorod (50 nm × 20 nm) assemblies. Their stability affords post-assembly processing–including separation of discrete structures (e.g., Au nanorod pairs)–and silica encapsulation, where the latter exhibits thermal stability in excess of 700 °C.