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Antimony telluride information


Antimony telluride

Electron micrograph of a seamless Bi2Te3/Sb2Te3 heterojunction and its atomic model (blue: Bi, green: Sb, red: Te)[1]
Names
Other names
antimony telluride, antimony(III) telluride, antimony telluride, diantimony tritelluride
Identifiers
CAS Number
  • 1327-50-0 checkY
3D model (JSmol)
  • Interactive image
  • Interactive image
ChemSpider
  • 21241420 checkY
ECHA InfoCard 100.014.074 Edit this at Wikidata
PubChem CID
  • 6369653
InChI
  • InChI=1S/2Sb.3Te/q2*+3;3*-2 checkY
    Key: RSPNQEPAQCYWKS-UHFFFAOYSA-N checkY
  • InChI=1/2Sb.3Te/q2*+3;3*-2
    Key: RSPNQEPAQCYWKS-UHFFFAOYAT
SMILES
  • [Te]=[Sb][Te][Sb]=[Te]
  • [Sb+3].[Sb+3].[Te-2].[Te-2].[Te-2]
Properties
Chemical formula
Sb2Te3
Molar mass 626.32 g·mol−1
Appearance grey solid
Density 6.50 g cm−3[2][3]
Melting point 620 °C (1,148 °F; 893 K)[2]
Band gap 0.21 eV[4]
Thermal conductivity 1.65 W/(m·K) (308 K)[5]
Structure
Crystal structure
Rhombohedral, hR15
Space group
R3m, No. 166[6]
Lattice constant
a = 0.4262 nm, c = 3.0435 nm
Formula units (Z)
3
Hazards
NIOSH (US health exposure limits):
PEL (Permissible)
TWA 0.5 mg/m3 (as Sb)[7]
REL (Recommended)
TWA 0.5 mg/m3 (as Sb)[7]
Related compounds
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. As is true of other pnictogen chalcogenide layered materials, it is a grey crystalline solid with layered structure. Layers consist of two atomic sheets of antimony and three atomic sheets of tellurium and are held together by weak van der Waals forces. Sb2Te3 is a narrow-gap semiconductor with a band gap 0.21 eV; it is also a topological insulator, and thus exhibits thickness-dependent physical properties.[1]

  1. ^ a b Eschbach, Markus; Młyńczak, Ewa; Kellner, Jens; Kampmeier, Jörn; Lanius, Martin; Neumann, Elmar; Weyrich, Christian; Gehlmann, Mathias; Gospodarič, Pika; Döring, Sven; Mussler, Gregor; Demarina, Nataliya; Luysberg, Martina; Bihlmayer, Gustav; Schäpers, Thomas; Plucinski, Lukasz; Blügel, Stefan; Morgenstern, Markus; Schneider, Claus M.; Grützmacher, Detlev (2015). "Realization of a vertical topological p–n junction in epitaxial Sb2Te3/Bi2Te3 heterostructures". Nature Communications. 6: 8816. arXiv:1510.02713. Bibcode:2015NatCo...6.8816E. doi:10.1038/ncomms9816. PMC 4660041. PMID 26572278.
  2. ^ a b Haynes, William M., ed. (2011). CRC Handbook of Chemistry and Physics (92nd ed.). Boca Raton, FL: CRC Press. p. 4.48. ISBN 1-4398-5511-0.
  3. ^ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. pp. 581–582. ISBN 978-0-08-037941-8.
  4. ^ Lefebvre, I.; Lannoo, M.; Allan, G.; Ibanez, A.; Fourcade, J.; Jumas, J. C.; Beaurepaire, E. (1987). "Electronic Properties of Antimony Chalcogenides". Physical Review Letters. 59 (21): 2471–2474. Bibcode:1987PhRvL..59.2471L. doi:10.1103/PhysRevLett.59.2471. PMID 10035559.
  5. ^ Yáñez-Limón, J. M.; González-Hernández, J.; Alvarado-Gil, J. J.; Delgadillo, I.; Vargas, H. (1995). "Thermal and electrical properties of the Ge:Sb:Te system by photoacoustic and Hall measurements". Physical Review B. 52 (23): 16321–16324. Bibcode:1995PhRvB..5216321Y. doi:10.1103/PhysRevB.52.16321. PMID 9981020.
  6. ^ Kim, Won-Sa (1997). "Solid state phase equilibria in the Pt–Sb–Te system". Journal of Alloys and Compounds. 252 (1–2): 166–171. doi:10.1016/S0925-8388(96)02709-0.
  7. ^ a b NIOSH Pocket Guide to Chemical Hazards. "#0036". National Institute for Occupational Safety and Health (NIOSH).

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Antimony telluride

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metalloid antimony. The name is derived from the Greek στίβι stibi through the Latin stibium as the former name for the mineral and the element antimony. Stibnite...

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include dimethyl telluride, diethyl telluride, diisopropyl telluride, diallyl telluride, and methyl allyl telluride. Diisopropyl telluride (DIPTe) is the...

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mineral stibnite (Sb2S3). Antimony compounds have been known since ancient times and were used for cosmetics, metallic antimony was also known but mostly...

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it absorb a wide range of wavelengths. Bismuth telluride (Bi2Te3), alloyed with selenium and antimony, is a component of thermoelectric devices used for...

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chemical properties resembling its lighter group 15 siblings arsenic and antimony. Elemental bismuth occurs naturally, and its sulfide and oxide forms are...

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The telluride oxides or oxytellurides are double salts that contain both telluride and oxide anions (Te2− and O2−). They are in the class of mixed anion...

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contribute to electrical conduction. With some semimetals, like arsenic and antimony, there is a temperature-independent carrier density below room temperature...

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compounds and alloys of bismuth, antimony, indium, cadmium, selenium and others. Lead(II) sulfide (PbS) Mercury cadmium telluride (Known as MCT, HgCdTe) Indium...

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idea of it. These include: lead glance (galena), copper (chalcocite), antimony (stibnite), molybdenum (molybdenite), as well as cobalt (cobaltine), silver...

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