Auger-Excited Photoluminescence from Gold Nanoflowers.

ABSTRACT: Photoluminescence from metal nanostructures offers a promising means of studying excited charge processes in metal nanostructures. Moreover, they have many potential applications in sensing, imaging, and nanothermometry. However, a general understanding of the emission from metal nanoparticles has not yet been achieved. In particular, the possible presence of sequential emission mechanisms involving the excitation of conduction band electrons via interband Auger scattering remains unclear. In this article, we provide spectroscopic evidence of Auger-excited intraband emission from gold nanoflowers. We employ a combination of photoluminescence and photoluminescence excitation spectroscopy to investigate the excitation pathways in films of gold nanoflowers. While, on the one hand, the excitat

SUBMITTER: Koopman W 

PROVIDER: S-EPMC12509311 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature