Niobium disulfide (NbS₂) is a layered transition metal dichalcogenide compound belonging to the family of two-dimensional materials. It is primarily investigated in research and advanced materials contexts rather than established industrial production, with potential applications leveraging its layered crystal structure and electronic properties. Engineers consider NbS₂ for emerging technologies in energy storage, catalysis, and nanoelectronics where its low exfoliation energy and tunable electronic behavior offer advantages over conventional materials.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 50.40 | GPa | DFT · OptB88vdW | ||
Exfoliation Energy(Eexf) | 1.920 | meV/atom | DFT · OptB88vdW | ||
Poisson's Ratio(ν) | 0.2900 | - | DFT · OptB88vdW | ||
Shear Modulus(G) | 32.00 | GPa | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 2.385 | kg/m³ | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 0.000 | eV | DFT · OptB88vdW | ||
| ↳ | 0.000 | eV | DFT · TBmBJ | ||
Dielectric Constant (Relative Permittivity)(εr) | 6.897 | - | DFT · OptB88vdW | ||
Magnetic Moment(μB) | 0.000 | µB | DFT · OptB88vdW | ||
Piezoelectric Modulus(eij)2 entries | 0.3930 | C/m² | DFT · OptB88vdW | ||
| ↳ | 0.4075 | C/m² | DFT · PBE | ||
Piezoelectric Stress Tensor(eij) | Matrix (redacted) | C/m² | DFT · PBE | ||
Thermoelectric Power Factor(PF)2 entries | 0.00226 | W/(m·K²) | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 0.00233 | W/(m·K²) | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Seebeck Coefficient(S)2 entries | 29.97 | μV/K | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 29.00 | μV/K | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.09080 | eV/atom | DFT · OptB88vdW | ||
Formation Energy(ΔHf) | -1.032 | eV/atom | DFT · OptB88vdW |
Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data