Colloidal Alchemy: Conversion of Polystyrene Nanoclusters into Gold

Citation:

Chomette, C. ; Tréguer-Delapierre, M. ; Schade, N. B. ; Manoharan, V. N. ; Lambert, O. ; Taveau, J. - C. ; Ravaine, S. ; Duguet, E. Colloidal Alchemy: Conversion of Polystyrene Nanoclusters into Gold. ChemNanoMat 2017, 3 160-163.

Abstract:

Isotropic plasmonic clusters consisting of a controlled number of gold satellites around a silica core are fabricated from silica/polystyrene tetrapod, hexapod, and dodecapod templates. The synthetic pathway includes stages of site-specific seed adsorption, seed-mediated growth, and iterative etching/regrowth to reshape the satellites into spheroids. Transmission electron microscopy and electron tomography provide evidence of the symmetry of the clusters. This work paves the way for a comprehensive study of their optical properties.

Publisher's Version

Last updated on 03/28/2018