Redox Chemistries for Vacancy Modulation in Plasmonic Copper Phosphide Nanocrystals.

ABSTRACT: Copper phosphide (Cu_3-xP) nanocrystals are promising materials for nanoplasmonics due to their substoichiometric composition, enabling the generation and stabilization of excess delocalized holes and leading to localized surface plasmon resonance (LSPR) absorption in the near-IR. We present three Cu-coupled redox chemistries that allow postsynthetic modulation of the delocalized hole concentrations and corresponding LSPR absorption in colloidal Cu_3-xP nanocrystals. Changes in the structural, optical, and compositional properties are evaluated by powder X-ray diffraction, electronic absorption spectroscopy, ³¹P magic-angle spinning solid-state nuclear magnetic resonance spectroscopy, and elemental analysis. The redox chemistries presented herei

SUBMITTER: Rachkov AG 

PROVIDER: S-EPMC10883034 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature