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Antimony Telluride (III)(Sb2Te3)-Powder

Antimony Telluride (III)(Sb2Te3)-Powder

CAS: 1327-50-0
Molecular Formula: Sb2Te3
Purity: 99.99%-99.999 %
Products Code: TR515202UN
Specification Model: -160 mesh
Hazardous Class: Class 6.1
EINECS No.: 215-480-9
UN No.: UN 1549
Package Class: PG III
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Antimony Telluride (III)(Sb2Te3)-Powder introduce:

Characteristic




Antimony telluride is an inorganic compound with the chemical formula Sb2Te3. As is true of other pnictogen chalcogenide layered materials, it is a grey crystalline solid with layered structure.




Chemical formula:Sb2Te3

CAS#:1327-50-0

Molar mass:626.32 g·mol−1

Appearance:grey solid

Density:6.50 g cm−3

Melting point:620 °C (1,148 °F; 893 K)

Band gap:0.21 eV

Thermal conductivity:1.65 W/(m·K) (308 K)

Crystal structure:Rhombohedral, hR15




Application




Like other binary chalcogenides of antimony and bismuth, Sb2Te3 has been investigated for its semiconductor properties. It can be transformed into both n-type and p-type semiconductors by doping with an appropriate dopant.




Doping Sb2Te3 with iron introduces multiple Fermi pockets, in contrast to the single frequency detected for pure Sb2Te3, and results in reduced carrier density and mobility.




Sb2Te3 forms the pseudobinary intermetallic system germanium-antimony-tellurium with germanium telluride, GeTe.




Like bismuth telluride, Bi2Te3, antimony telluride has a large thermoelectric effect and is therefore used in solid state refrigerators.
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