Bimetallic nanoparticles (BNPs) are important for fundamental research and for applications as their physicochemical properties can be tuned by controlling their chemical composition, size and environment. But the in-depth understanding of the role of the various parameters, required for this tuning, is hampered by the polydispersity of typical samples, especially in the range of quantum effects below 10 nm. In this project we propose to circumvent these problems by performing experiments on individual aluminum-containing BNPs, prepared under controlled conditions. Environmental electron microscopy is used for structural characterization (alloying vs. segregation, core shell), whereas electronic spectroscopy gives access to the plasmonic response, one particle and one structure at a time. Single-particle results are then compared to ensemble-averaged measurements and multi-scale modelling.
Monsieur Mathtias Hillenkamp (INSTITUT LUMIERE MATIERE)
The author of this summary is the project coordinator, who is responsible for the content of this summary. The ANR declines any responsibility as for its contents.
ILM INSTITUT LUMIERE MATIERE
MATEIS Matériaux : Ingénierie et Science
LPS Laboratoire de Physique des Solides
CINaM CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE DELEGATION REGIONALE PROVENCE ET CORSE
IFGW Universidade Estadual de Campinas / Instituto de Física "Gleb Wataghin"
Help of the ANR 473,624 euros
Beginning and duration of the scientific project: October 2021 - 48 Months