Molybdenum disulfide (MoS2) is the most famous of the single layer transition metal dichalcogenide (TMD) family. MoS2?has been used in bulk for many years as a solid state lubricant, this is due to its low coefficient of friction in addition to its high chemical and thermal stability. Similar to graphite, when MoS2?transitions from a bulk structure to a single layer structure the properties of this material undergo a significant change.
