title: Engineering high refractive index sensitivity through the internal and external composition of bimetallic nanocrystals.
abstract: High refractive index sensitivity (RIS) of branched Au-Pd nanocrystals (NCs) is engineered through lowering the dielectric dispersion at the NC resonant wavelength with internal or external atomic % Pd. To our knowledge, these NCs display the highest ensemble RIS measurement for colloids with LSPR maximum band positions ≤900 nm, and these results are corroborated with FDTD computations.
authors.affiliation: Department of Chemistry, Indiana University, Bloomington, Indiana 47405, USA. rgweiner@indiana.edu sskrabal@indiana.edu.
authors.forename: Alison F
authors.initials: AF
authors.lastname: Smith
authors.forename: Samantha M
authors.initials: SM
authors.lastname: Harvey
authors.forename: Sara E
authors.initials: SE
authors.lastname: Skrabalak
authors.forename: Rebecca G
authors.initials: RG
authors.lastname: Weiner