Molybdenum disulfide is an inorganic substance with the chemical formula MoS₂, a black solid powder with a metallic luster. MoS₂ has been intensively studied for over 10 years, and many potential applications have been investigated. Below are a selection of these.

1.Field-effect transistors

2.Photodetectors

3.Solar cells

4.Chemical sensors

5.Supercapacitor electrodes

6.Valleytronic devices

Molybdenum disulfide is one of the best known solid lubricants, and although it originally gained popularity in aerospace and military applications, it is now commonly found in a variety of lubrication applications. It is widely used in greases and specialized grease-like products known as pastes, in fluid lubricants such as automotive and industrial gear oils, in solid film lubricants including but not limited to burnished (rubbed-on) films, sputtered coatings, resin bonded and impingement coatings. This paper reviews the properties of MoS₂ including physical and chemical properties, electrical properties, effects of temperature and oxidation as well as application areas such as greases, fluid lubricants, and solid film (dry) lubricants where molybdenum disulfide is widely implemented.