Understanding the NIR Emission of Metal Nanoclusters Through a Ligand-Shell-Kernel Triad Picture.

ABSTRACT: Near-infrared (NIR)-emitting noble metal nanoclusters have received significant research interest due to their low toxicity and feasible tunability, yet their practical applications remain constrained because of low photoluminescence quantum yields (PLQYs). Although ligand engineering and structural modulation strategies have advanced, the synergistic interplay among ligands, shells, and kernels in governing luminescence mechanisms remains poorly understood. Here, we elucidate the structural determinants of emission efficiency by comparing the photophysics of two quasi-isomeric Pt₁Ag₂₈ nanoclusters stabilized by adamantanethiol (HS-Adm) and triphenylphosphine (PPh₃) (denoted as Pt₁Ag₂₈-1) and cyclohexanethiol (HS-C₆H_11<

SUBMITTER: Zhao R 

PROVIDER: S-EPMC12648330 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature