New ternary compounds containing Zn–Cu and Zn–Ag from single molecular source precursors

Abstract

Heterobimetallic complexes [(PPh₃)Cu(SCOPh)₃Zn(PPh₃)] and [(PPh₃)₂Ag(SCOPh)₂Zn(SCOPh)(0.5H₂O)] were used as single molecular sources for the syntheses of ternary compounds. These complexes upon pyrolysis at 350 °C in the solid state yielded ZnS/CuS and ZnS/Ag₂S alloys respectively. In oleylamine solution decomposition of the complexes took place at 165 °C only leading to the formation of the corresponding sulfide nanoparticles. The bulk sulfide materials have been characterized by SEM-EDX, XPS and powder X-ray diffraction techniques. The nanoparticles have been characterized by EDS-elemental mapping and HRTEM.