A simple route to shape controlled CdS nanoparticles

We report the synthesis of CdS nanoparticles in the form of spheres, triangles and wire-like structures. The method involves the reaction of reduced sulfur with a cadmium salt followed by thermolysis in hexadecylamine (HDA). The different shapes were obtained by variation of reaction conditions such as reaction time, temperature and cadmium source. The optical studies show the particles to be quantum confined and luminescent at room temperature.

► CdS nanoparticles in the form of spheres, triangles and wire-like structures are reported.
► The reaction conditions such as temperature and cadmium salt were varied.
► The optical studies show the particles to be quantum confined and luminescent at room temperature.