Hydrothermal synthesis of square thin flake CdS by using surfactants and thiocarbohydrate

In this paper, cadmium sulfide (CdS) square thin flakes were prepared from the aqueous solution of Cd(NO3)2 and thiocarbohydrate at 180°C by using surfactants. The resulting samples were characterized by powder X-ray diffraction (XRD) and transmission electron micrography (TEM). The particle prepared without surfactants has a spherical shape and the average size is about 16nm. The products fabricated in some surfactants have a square thin plate shape which may stack on each other to form a laminar structure. Electron diffraction (ED) indicated the samples were well crystallized.