Hot carriers from plasmon decay

Metallic nanoparticles can support strong localized surface plasmon resonances (LSPRs). The decay of these excitations leads to the creation of hot carriers, in other words a non-equilibrium distribution of electrons and holes. In collaboration with researcher from ETH Zürich, using time dependent density functional theory (TD-DFT) calculations, we recently simulated the transfer of these carriers from silver nanoparticles onto molecules and across a metal-semiconductor interface. The results indicate that direct transfer processes are relatively effective in inducing carriers respectively into LUMO/HOMO and conduction/valence band.