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As2Te3

As2Te3?

As2Te3?

As2Te3 (Arsenicum Telluride)

砷化碲

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.?

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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 inion?

Please contact us by?email 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:

Click on an image to zoom

?Powder X-ray diffraction (XRD) of a single crystal As2Te3

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)

Stoichiometric analysis of a single crystal As2Te3 by Energy-dispersive X-ray spectroscopy (EDX).

Raman spectrum of a single crystal As2Te3

Raman spectrum of a single crystal As2Te3. Measurement was performed with a 785 nm Raman system at room temperature.

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