Ultrafast nonthermal electron transfer at plasmonic interfaces.

ABSTRACT: Plasmon-induced charge generation and separation in metal/semiconductor heterostructures offer a promising platform for hot carrier-based energy conversion applications. A key challenge is understanding ultrafast hot carrier transfer at heterogeneous interfaces, as the details of plasmonic enhanced charge transfer dynamics and accompanying energy relaxation remain unclear. Here, by tracking charge transfer processes across spatial, temporal, and energy domains, we reveal ultrafast, nonthermal electron transfer directly from gold nanoparticles to gallium nitride (GaN) without energy losses from electron-electron scattering. This process facilitates efficient charge separation and produces a nonthermal distribution of transferred electron in GaN-contrasting with substantial energy dissipatio

SUBMITTER: Gao Y 

PROVIDER: S-EPMC12644476 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature