Study of the formation of a novel water-soluble chalcogenide vehicle toward CdX quantum dots

Currently, most processes synthesizing CdX (X = S, Se, Te) quantum dots (QDs) use organic solvents, which permit high temperature reactions. In this poster, a
new source of water soluble chalcogenide is presented. After reviewing the most relevant properties of the new reducer, tris(2-carboxyethyl)phosphine (TCEP) and
the products formed with chalcogens (S, Se, Te), the optimization realized on these three substrates is presented. Finally, the reaction is studied by in-situ Raman
spectroscopy to monitor overtime the formation of the products (TCEP=X X=S, Se, Te) and from these profile, to develop a kinetic model, allowing to estimate
activation barrier (Ea) of these chalcogenide precursors,