TY  - JOUR
AU  - Steiner, Anja Maria
AU  - Mayer, Martin
AU  - Schletz, Daniel
AU  - Wolf, Daniel
AU  - Formanek, Petr
AU  - Hübner, René
AU  - Dulle, Martin
AU  - Förster, Stephan
AU  - König, Tobias A. F.
AU  - Fery, Andreas
TI  - Silver Particles with Rhombicuboctahedral Shape and Effective Isotropic Interactions with Light
JO  - Chemistry of materials
VL  - 31
IS  - 8
SN  - 1520-5002
CY  - Washington, DC
PB  - American Chemical Society
M1  - FZJ-2019-04666
SP  - 2822 - 2827
PY  - 2019
AB  - 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
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000466053300017
DO  - DOI:10.1021/acs.chemmater.8b05220
UR  - https://juser.fz-juelich.de/record/865114
ER  -