Synthesis of ternary chalcogenide colloidal nanocrystals in aqueous medium

Abstract

Colloidal nanocrystals of AgInS2, Zn-Ag-In-S were synthesized directly in an aqueous medium by injection method. Two ligands, L-Glutathione and sodium citrate, were used for preparation of precursor solutions to achieve a balance of the reactivity of the two types of cations. Obtained samples are characterized by asymmetric photoluminescence band, tunable depending on the conditions of the synthesis.