Open AccessShaping the Synthesis and Assembly of Symmetrically Stellated Au/Pd Nanocrystals with Aromatic Additives
Author(s) -
Christopher J. DeSantis,
Aaron C. Sue,
Andjela Radmilovic,
Haoming Liu,
Yaroslav Losovyj,
Sara E. Skrabalak
Publication year - 2014
Publication title -
nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 4.853
H-Index - 488
eISSN - 1530-6992
pISSN - 1530-6984
DOI - 10.1021/nl501802u
Subject(s) - nanocrystal , nanostructure , materials science , plasmon , nanotechnology , homogeneity (statistics) , metal , chemical engineering , optoelectronics , metallurgy , statistics , mathematics , engineering
Au/Pd octopods were synthesized with enhanced sample homogeneity through the use of aromatic additives. This increase in sample monodispersity facilitates large-area periodic assembly of stellated metal nanostructures for the first time. The aromatic additives were also found to influence the structures of the stellated nanocrystals with subtle shape modifications observed that can alter the packing arrangement of the Au/Pd octopods. These results indicate the possibility of tailored assembly of stellated nanostructures, which would be useful for optical applications that require strong and predictable coupling between plasmonic building blocks.