%0 Journal Article
%A Steiner, Anja Maria
%A Mayer, Martin
%A Schletz, Daniel
%A Wolf, Daniel
%A Formanek, Petr
%A Hübner, René
%A Dulle, Martin
%A Förster, Stephan
%A König, Tobias A. F.
%A Fery, Andreas
%T Silver Particles with Rhombicuboctahedral Shape and Effective Isotropic Interactions with Light
%J Chemistry of materials
%V 31
%N 8
%@ 1520-5002
%C Washington, DC
%I American Chemical Society
%M FZJ-2019-04666
%P 2822 - 2827
%D 2019
%X Truly spherical silver nanoparticles are of great importance for fundamental studies including plasmonic applications, but their direct synthesis in aqueous media is not feasible. Using the commonly employed copper-based etching processes, an isotropic plasmonic response can be achieved by etching well-defined silver nanocubes. Whilst spherical-like shape is typically prevailing in such processes, we established that there is a preferential growth toward silver rhombicuboctahedra, which is the thermodynamically most stable product of this synthesis. The rhombicuboctahedral morphology is further evidenced by comprehensive characterization with small-angle X-ray scattering in combination with transmission electron microscopy (TEM) tomography and high-resolution TEM. We also elucidate the complete reaction mechanism based on UV–vis kinetic studies, and the postulated mechanism can also be extended to all copper-based etching processes
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000466053300017
%R 10.1021/acs.chemmater.8b05220
%U https://juser.fz-juelich.de/record/865114