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Antimony telluride

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Antimony telluride
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Other names
antimony telluride, antimony(III) telluride, antimony telluride, diantimony tritelluride
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1327-50-0 7pxY
ChemSpider 21241420 7pxY
Jmol-3D images Image
PubChem Template:Chembox PubChem/format
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Sb2Te3
Molar mass Lua error in Module:Math at line 495: attempt to index field 'ParserFunctions' (a nil value). g·mol−1
Appearance grey solid
Density 6.50 g cm−3[1]
Melting point Script error: No such module "convert".[1]
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Other anions
Sb2O3
Sb2S3
Sb2Se3
Other cations
As2Te3
Bi2Te3
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Antimony telluride is an inorganic compound with the chemical formula Sb2Te3. It is a grey, crystalline solid, although its melting point, density and colour may depend on the crystalline form it adopts.

Synthesis

Antimony telluride can be formed by the reaction of antimony with tellurium at 500–900 °C.[1]

2Sb(l) + 3Te(l) → Sb2Te3(l)

Applications

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.[1]

Sb2Te3 forms the pseudobinary intermetallic system germanium-antimony-tellurium with germanium telluride, GeTe.[2]

Like bismuth telluride, Bi2Te3, antimony telluride has a large thermoelectric effect and is therefore used in solid state refrigerators.[1]

References

  1. 1.0 1.1 1.2 1.3 1.4 Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. pp. 581–582. ISBN 0080379419. 
  2. Wełnic, Wojciech; Wuttig, Matthias (2008). "Reversible switching in phase-change materials". Materials Today 11 (6): 20–27. doi:10.1016/S1369-7021(08)70118-4.