MoS2

metal
· MoS2

Molybdenum disulfide (MoS₂) is a layered transition metal dichalcogenide compound that exists naturally as the mineral molybdenite and can be synthesized or exfoliated into thin-film and nanoscale forms. It is widely used in tribological coatings, solid lubricants, and catalytic applications due to its low friction characteristics and chemical stability, with emerging applications in 2D electronics, optoelectronics, and energy storage where its semiconductor properties and weak interlayer bonding make it attractive for device integration. Engineers select MoS₂ over conventional lubricants in extreme environments (vacuum, high temperature, corrosive conditions) and over graphene in applications requiring a direct bandgap for light emission or photodetection.

dry film lubricantsvacuum bearing coatingscatalytic hydrogen evolution2D semiconductor devicestribological coatingsphotodetectors and optoelectronics

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
PropertyValueUnitConditionsSource
Bulk Modulus(K)
Pa
Exfoliation Energy(Eexf)
meV/atom
Poisson's Ratio(ν)
-
Shear Modulus(G)
Pa
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
kg/m³
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
eV
Dielectric Constant (Relative Permittivity)(εr)
-
Electronic Dielectric Tensor(ε∞)
Matrix (redacted)
-
Total Dielectric Tensor(ε)
Matrix (redacted)
-
Magnetic Moment(μB)
µB
Piezoelectric Modulus(eij)
C/m²
Piezoelectric Stress Tensor(eij)
Matrix (redacted)
C/m²
Seebeck Coefficient(S)
µV/K
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
eV/atom
Formation Energy(ΔHf)2 entries
eV/atom
eV/atom
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Export Control

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.