Colloidal preparation of copper selenide and indium selenide nanoparticles by single source precursors approach

Abstract

M_x(ⁱPr₂PSe₂)_y] complexes (M = In, Cu) were synthesized by metathesis reaction of metal with ligand salt [HNEt₃][ⁱPr₂PSe₂]. These complexes undergo thermolysis in HDA/TOP at 200-270 °C, to yield monophasic Cu_2-xSe and In₂Se₃ nanoparticles. Cu_2-xSe nanoparticles (grown at 250 °C) and In₂Se₃ nanoparticles (grown at 270 °C) had a mean diameter of 5.0 ± 1.2 nm and 13 ± 2.5 nm, respectively.