Sb2Te3 (Antimony Telluride)

Sb2Te3 Antimony Telluride Sb2Te3 is a semiconductor, topological insulator and a thermoelectric material. The layers are stacked together via van der Waals interactions and can be exfoliated into thin 2D layers. Antimony Telluride belongs to the group-15 metalloid trichalcogenides.

The Sb2Te3 crystals have a typical lateral size of ~0.6-0.8 cm, are rectangular shaped and have a metallic appearance.

Sb2Te3 crystal properties
Crystal size ~10 mm
Electrical properties Semiconductor, Topological insulator, Thermoelectric
Crystal structure Hexagonal
Unit cell parameters a = b = 0.425 nm, c = 3.048 nm, α = β = 90° γ = 120°
Monolayer properties Link to C2DB containing calculated properties
Type Synthetic
Purity >99.995%
Characterized by XRD, Raman, EDX
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The single crystal Sb2Te3 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

Raman, XRD and EDX on Sb2Te3:

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X-ray diffraction on a Sb2Te3 single crystal aligned along the (001) plane. XRD was performed at room temperature using a D8 Venture Bruker. The 7 XRD peaks correspond, from left to right, to (00l) with l = 6, 9, 12, 15, 18, 21, 24

XRD of a single crystal Bi2Te3. X-ray diffraction was performed at room temperature using a D8 Venture Bruker.

EDX of a single crystal Bi2Te3.

Raman of a single crystal Bi2Te3. Measurement with a 785nm Raman at room temperature.

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Sb2Te3 (Antimony Telluride)

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