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.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 51.32 | GPa | — | ||
Exfoliation Energy(Eexf) | 89.43 | meV/atom | — | ||
Poisson's Ratio(ν) | 0.1900 | - | — | ||
Shear Modulus(G) | 45.47 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 4.875 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 9.760 | - | — | ||
Electronic Dielectric Tensor(ε∞) | Matrix (redacted) | - | — | ||
Total Dielectric Tensor(ε) | Matrix (redacted) | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.5156 | C/m² | — | ||
Piezoelectric Stress Tensor(eij) | Matrix (redacted) | C/m² | — | ||
Seebeck Coefficient(S) | -35.48 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.2625 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -0.9540 | eV/atom | — | ||
| ↳ | -0.6991 | eV/atom | — |