An innovative chalcogenide transfer agent for improved aqueous quantum dot synthesis.

ABSTRACT: An innovative approach to chalcogenide precursor synthesis and their subsequent use for the production of CdX (X = S, Se, Te) quantum dots (QDs) in water under scalable and intensified continuous flow conditions is introduced. Herein, tris(2-carboxyethyl)phosphine (TCEP) is identified as a novel, efficient and water-soluble vehicle for chalcogenide transfer to form CdX QDs under aqueous conditions. A comprehensive exploration of critical process parameters, including pH, chalcogen excess, and residence time, utilizing a Design of Experiments (DoE) approach is reported. Reaction kinetics are investigated in real-time using a combination of in situ Raman spectroscopy and in-line ³¹P NMR spectroscopy. The conversion of TCEP into TCEP[double bond, length as m-dash]X (X = S, S

SUBMITTER: Petit G 

PROVIDER: S-EPMC11309086 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature