Even when the increasing interest in MoS₂ is driven by their properties as a 2D material, the deposit of MoS₂ films using low cost techniques is interesting and allows to explore the feasibility to find routes to produce low cost materials capable to improve photovoltaic structures, etc. The results of the deposit by chemical bath deposition of MoS₂ films employing Si and glass substrates are presented. Two precursor were employed: Ammonium molybdate (NH₄)2MoO₄ and Ammonium molybdate tetrahydrate (NH₄)6Mo₇O₂₄ · 4H₂O. It was found that the first precursor is adequate to obtain amorphous MoS₂ films on glass while the second allows to obtain amorphous films on silicon.

The samples crystallized after a thermal annealing process carried out at 300 °C. UV-Vis spectroscopy indicated a blue-shift in the absorption edge from the MoS₂ bulk value, probably related to the film thickness. Samples were characterized also by XPS, Raman and AFM. The results are discussed in terms of the structural characteristic of the films and the interaction with the substrate.