Isomerization-induced enhancement of luminescence in Au₂₈(SR)₂₀ nanoclusters.

ABSTRACT: Understanding the origin and structural basis of the photoluminescence (PL) phenomenon in thiolate-protected metal nanoclusters is of paramount importance for both fundamental science and practical applications. It remains a major challenge to correlate the PL properties with the atomic-level structure due to the complex interplay of the metal core (i.e. the inner kernel) and the exterior shell (i.e. surface Au(i)-thiolate staple motifs). Decoupling these two intertwined structural factors is critical in order to understand the PL origin. Herein, we utilize two Au₂₈(SR)₂₀ nanoclusters with different -R groups, which possess the same core but different shell structures and thus provide an ideal system for the PL study. We discover that the Au₂₈

SUBMITTER: Chen Y 

PROVIDER: S-EPMC8163317 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature