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Updated: Aug 4, 2026

Ligand-Mediated Nucleation and Growth of Palladium Metal Nanoparticles
Published on: June 25, 2018
Size-dependent electron-electron interactions in metal nanoparticles
Voisin1, Christofilos, Del Fatti N
1Laboratoire d'Optique Quantique du CNRS, Ecole Polytechnique, 91128 Palaiseau cedex, France.
Abstract:
The internal thermalization dynamics of the conduction electrons is investigated in silver nanoparticles with radius ranging from 13 to 1.6 nm using a femtosecond IR pump-UV probe absorption saturation technique. A sharp increase of the electron energy exchange rate is demonstrated for nanoparticles smaller than 5 nm. The results are consistent with electron-electron scattering acceleration due to surface induced reduction of the Coulomb interaction screening by the conduction and core electrons.
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