3R-NbS2 (3R phase Niobium Disulfide)
3R-NbS2 is a metal. Note that NbS2 also exists in the 2H-NbS2 phase which is a superconductor with Tc ~6K. The layers are stacked together via van der Waals interactions and can be exfoliated into thin 2D layers. Niobium Disulfide belongs to the group-V transition metal dichalcogenides (TMDC).
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The 3R phase NbS2 crystals produced at HQ Graphene have a typical lateral size of ~0.4 cm, trigonal/hexagonal shaped and have a metallic appearance.
| Crystal size | ~4 mm |
| Electrical properties | Metal |
| Crystal structure | hexagonal |
| Unit cell parameters | a = b = 0.330 nm, c = 1.792 nm, α = β = 90, γ = 120° |
| Type | Synthetic |
| Purity | >99.995% |
| Characterized by | XRD, Raman, EDX |
| More information? | Please contact us by email or phone |
The single crystal 3R NbS2 is characterized using:
XRD: single crystal and powder X-ray diffraction (D8 Venture Bruker and D8 Advance Bruker)EDX: Energy-dispersive X-ray spectroscopy for stoichiometric analysis
Raman: 785 nm Raman system
Raman, XRD and EDX on 3R-NbS2:
Click on an image to zoom
HQ Graphene Wiki on:
3R NbS2 (3R phase Niobium disulfide)
1. El Youbi, Z., et al. "Fermiology and electron-phonon coupling in the 2 H and 3 R polytypes of Nb S 2." Physical Review B 103.15 (2021): 155105.
2. Mehmood, N. Optoelectronic and Thermal Properties of Metallic Transition Metal Dichalcogenides. Diss. Bilkent Universitesi (Turkey), 2020.