Controlled synthesis of PbS nanoparticles and the deposition of thin films by Aerosol-Assisted Chemical Vapour Deposition (AACVD)

Abstract

A series of symmetrical and unsymmetrical N,N-dialkyldithiocarbamatolead(II) complexes with the general formula [Pb(S₂CNRR₂)₂] where R₁ = Me, R₂ = benzyl (1), R₁ = Me, R₂ = heptyl (2), R₁ = Me, R₂ = octadecyl (3), R₁ = R₂ = dioctyl (4), R₁ = Me, R₂ = Hex (5), R₁ = Me, R₂ = Me (6), R₁ = Et, R₂ = Et (7), R₁ = ⁿPr, and R₂ = ⁿPr (8) have been prepared and characterized. All these complexes were used as single source precursors to grow PbS nanoparticles by thermolysis in oleylamine at temperature as low as 60 °C; lower temperatures than previously used. Compounds (1)–(4) have also been used as precursors to deposit thin films of PbS by Aerosol-Assisted Chemical Vapour Deposition (AACVD). The crystal structure of (1) has also been determined.