Description
This product contains full area coverage NbS2 few-layers on double side polished c-cut sapphire substrates. The sample size measures ~1cm and the entire sample surface contains few-layer thick (~2-3nm) highly crystalline NbS2 layers, though the thickness can be engineered.
Niobium disulfide (NbS₂) is a member of transition metal dichalcogenide (TMD) family. Synthesized CVD NbS₂ crystallizes in a hexagonal structure, in a 2H (hexagonal) polytype. NbS₂ is metallic in nature, meaning it has good electrical conductivity.
Properties of NbS2 crystals by 2Dsemiconductors USA
| Sample size | 1cm x 1cm square shaped |
| Substrate size | (0001) c-cut double-side polished sapphire |
| Coverage | Full Coverage Monolayer |
| Electrical properties | Metallic |
| Crystal structure | Hexagonal Phase |
| Unit cell parameters | a = b = 0.334 nm, c = 1.194 nm, α = β = 90°, γ = 120° |
| Production method | Low pressure Pressure Chemical Vapor Deposition (APCVD) |
| Characterization methods | Raman, XRD, TEM, SEM/EDS |
Specification.
- Identification. Full coverage 100% few-layer NbS2 uniformly covered across c-cut sapphire
- Physical dimensions. one centimeter in size. Larger sizes up to 2-inch wafer-scale available upon requests.
- Smoothness. Atomically smooth surface with roughness < 0.15 nm.
- Uniformity. Highly uniform surface morphology. NbS2 few-layers uniformly cover across the sample.
- Purity. 99.9995% purity as determined by nano-SIMS measurements
- Reliability. Uniform sample coverage 95% or above reliability.
- Crystallinity. Highly crystalline.
- Substrate. Double side polished c-cut Sapphire but our research and development team can transfer NbS2 few-layers onto various substrates including PET, quartz, and SiO2/Si.
- Support. 2Dsemiconductors USA is an American owned, regulated, and operated company. Our customers are well-protected by international as well as strict American customer laws and regulations. We give full technical support and guarantee your satisfaction with our well-established customer service
Additional Information
Elements: |
Nb,S |
Element: |
Niobium |
Element: |
Sulfur |
Formula: |
NbS2 |
Material class: |
MX2 |
Material class: |
Dichalcogen |
Properties: |
Superconductor |
Properties: |
Semimetal |
Growth method: |
CVD |
Doping: |
Undoped |
Thin-film type: |
Few-layer |
Substrate: |
Sapphire |
