Molybdenum disulfide (MoS₂) nanoparticle has been synthesized by a facile and rapid microwave in the presence of ethylene glycol can act as an excellent susceptor of microwave irradiation. The structure and morphology of MoS₂are characterized by X-ray diffraction, raman spectroscopy, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The results show that nanometer scaled (<100nm) molybdenum disulfide with different morphologies can be successfully fabricated by microwave liquid state method with different time and power.

MoS₂ thin films were deposited on fluorine-doped tin oxide (FTO) conducting glass via electrophoretic deposition (EPD) from the as-synthesized MoS₂ colloidal solution. The SEM-EDS analyses showed that MoS₂ film were formed after 10 min deposition at varying applied voltages from 10 to 25 V. A high electrocatalytic activity of MoS₂ films for S²⁻/S_n²⁻ redox couple, usually used as a mediator for quantum dot solar cells (QDSCs), has been observed by cyclic voltammetry measurements. The prepared MoS₂/FTO counter electrode was used to fabricate QDSCs, in which the photoanode was two-layer CdS/CdSe adsorbed on a mesoporous TiO₂ film and the electrolyte was a polysulfide solution.