As2Te3?
As2Te3 (Arsenicum Telluride)
砷化碲
As2Te3 (alpha phase) is a semiconductor (~0.2-0.3 eV), thermoelectric material and a topological insulator. The layers are stacked together via van der Waals interactions and can be exfoliated into thin 2D layers. α-As2Te3 belongs to the group-15 metalloid trichalcogenides.
The Arsenicum Telluride crystals have a typical lateral size of ~0.6-0.8 cm. The crystals are rectangular shaped and have a metallic appearance.
As2Te3 crystal properties
Crystal size | ~10 mm |
Electrical properties | Semiconductor, Topological Insulator, Thermoelectric material |
Crystal structure | Monoclinic C |
Unit cell parameters | a = 1.430 nm, b = 0.403 nm, c = 0.986 nm, α = γ = 90°, β = 95.40° |
Type | Synthetic |
Purity | >99.995 % |
Characterized by | XRD, Raman, EDX |
More information? | Please contact us by or phone |
The single crystal As2Te3 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: 785nm Raman system
Raman, XRD and EDX on As2Te3:
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Powder X-ray diffraction (XRD) of a single crystal As2Te3. X-ray diffraction was performed at room temperature using a D8 Venture Bruker.
Stoichiometric analysis of a single crystal As2Te3 by Energy-dispersive X-ray spectroscopy (EDX).
Raman spectrum of a single crystal As2Te3. Measurement was performed with a 785 nm Raman system at room temperature.
