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Introduce | Bi2Te3 is a topological insulator. The layers are stacked together via van der Waals interactions and can be exfoliated into thin 2D layers. Bi2Te3 belongs to the group-15 post-transition metal trichalcogenides. The Bi2Te3 crystals produced at HQ Graphene have a typical lateral size of ~0.6-0.8 cm, rectangular shaped and have a metallic appearance. | |
| Bi2Te3 crystal properties | Crystal size | ~10 mm |
| Electrical properties | Topological Insulator | |
| Crystal structure | Hexagonal | |
| Unit cell parameters | a = b = 0.438 nm, c = 3.050 nm, α = β = 90°, γ = 120° | |
| Type | Synthetic | |
| Purity | >99.995% | |
| Characterized by | XRD, Raman, EDX, Hall measurement | |
| The single crystal Bi2Te3 is characterized using: | ||
| XRD: single crystal and powder X-ray diffraction (D8 Venture Bruker and D8 Advance Bruker) EDX: Stoichiometric analysis Raman: 785nm Raman system Hall measurement: Extraction of charge carrier density and doping in the Van der Pauw geometry. | ||
| XRD |  | |
| EDX |  | |
