Template-Guided Sodium Intercalation Enables Phase-Pure Alkali Metal-based Ternary Chalcogenides Nanocrystals

Abstract

Alkali metal–based ternary chalcogenides are promising materials which remain synthetically underexplored. Here, a template-based strategy enables synthesis of colloidal NaInS₂ and NaIn₃Se₅ nanocrystals. Mechanistic insights reveal sodium intercalation as a predictive route to phase-pure ABZ nanocrystals.