Physical Review Letters · 2003 · 282 citations · 25 references
Natural SciencesMaterials SciencePhysicsCondensed Matter PhysicsNanomaterialsNanotechnologyElectron-phonon InteractionsNanoparticle InterfacesNanoparticle SurfacesPlasmonic NanomaterialsQuantum ConfinementSurface PhysicsCarrier-phonon CouplingElectron-phonon ScatteringNanoparticlesPhonon ScatteringPhonon-phonon InteractionsPlasmonics In Low-dimensional SystemsPump-probe SpectroscopyTime-resolved Electron-phonon Dynamics
Electron-lattice energy exchanges are investigated in gold and silver nanoparticles with sizes ranging from 30 to 2.2 nm embedded in different environments. Femtosecond pump-probe experiments performed in the low-perturbation regime demonstrate a strong increase of the intrinsic electron-phonon interaction for nanoparticles smaller than 10 nm due to a confinement effect.
25