An easy-to-work precursor and low-temperature method for synthesis of ultrafine and high purity SnS and PbS semiconductor nanoparticles

Abstract

Tin (II) sulfide and lead (II) sulfide nanoparticles were successfully synthesized via a simple method using thioglycolic acid at mild condition without any need to complicated processes. The synthesized nanoparticles were characterized by different technique such as FT-IR, XRD, TEM EDAX and Uv–Vis. Image analysis confirms that SnS and PbS nanoparticles have spherical morphology and average particle size distributes in the narrow range of 2.5–10 nm. To investigate quantum confinement effect, optical band gap of the nanoparticles was measured which was higher than the bulk band gap value. This research gives a new perspective on the fabrication of novel metal sulfide nanoparticles.