Pluronic P123 assisted synthesis of hollow InSn/In₂O₃ hybrid nanoparticles by solution dispersion

摘要

Hollow InSn/In₂O₃ hybrid nanoparticles were fabricated via stirring InSn alloy in polyethylene glycol-400 (PEG 400) solution containing P123 at 180°C. The hollow hybrid nanoparticles were characterized by TEM, XRD, XPS and other techniques. The hybrid nanoparticles have an average particle diameter of 20 nm, and they have a core. XRD studies show the presence of an equilibrium phase In₃Sn and InSn₄. XPS results indicate that the surface layer of the shell is mainly composed of indium oxides. Based on the time-dependent experiments, the evolution behavior of alloy droplets is proposed to explain the formation mechanism. The hollow nanoparticles display stronger UV emission than that of In₂O₃ nanoparticles.