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Arsenicum Telluride (As2Te3)
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
Description
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.
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