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Antimony triselenide

From Wikipedia, the free encyclopedia
Antimony triselenide
Names
Other names
  • Antimonselite
  • Antimony(III) selenide
  • Selenoxyantimony
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard100.013.870Edit this at Wikidata
  • InChI=1S/2Sb.3Se/q2*+3;3*-2 checkY
    Key: WWUNXXBCFXOXHC-UHFFFAOYSA-N checkY
  • InChI=1S/2Sb.3Se/q2*+3;3*-2
  • Key: WWUNXXBCFXOXHC-UHFFFAOYSA-N
  • [SbH3+3].[SbH3+3].[Se-2].[Se-2].[Se-2]
Properties
Sb2Se3
Molar mass480.433 g·mol−1
Appearanceblack crystals
Density5.81 g/cm3, solid
Melting point611 °C (1,132 °F; 884 K)
Structure
Orthorhombic,oP20, SpaceGroup = Pnma, No. 62
Hazards
NIOSH (US health exposure limits):
PEL (Permissible)
TWA 0.5 mg/m3 (as Sb)[1]
REL (Recommended)
TWA 0.5 mg/m3 (as Sb)[1]
Related compounds
Otheranions
antimony(III) oxide,antimony(III) sulfide,antimony(III) telluride
Othercations
arsenic(III) selenide,bismuth(III) selenide
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa).
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Chemical compound

Antimony triselenide is thechemical compound with theformulaSb2Se3. The material exists as thesulfosaltmineralantimonselite (IMAsymbol: Atm[2]), which crystallizes in an orthorhombicspace group.[3] In this compound, antimony has a formaloxidation state +3 and selenium −2. The bonding in this compound has covalent character as evidenced by the black color andsemiconducting properties of this and related materials.[4] The low-frequency dielectric constant (ε0) has been measured to be 133 along thec axis of the crystal at room temperature, which is unusually large.[5] Its band gap is 1.18 eV at room temperature.[6]

The compound may be formed by the reaction ofantimony withselenium and has a melting point of 885 K.[4]

Applications

[edit]

Sb2Se3 is now being actively explored for application thin-film solar cells.[7] A record light-to-electricity conversion efficiency of 9.2% has been reported.[8]

References

[edit]
  1. ^abNIOSH Pocket Guide to Chemical Hazards."#0036".National Institute for Occupational Safety and Health (NIOSH).
  2. ^Warr, L.N. (2021)."IMA-CNMNC approved mineral symbols".Mineralogical Magazine.85 (3):291–320.Bibcode:2021MinM...85..291W.doi:10.1180/mgm.2021.43.S2CID 235729616.
  3. ^Jambor, J. L.; Grew, E. S."New Mineral Names" American Mineralogist, Volume 79, pages 387-391, 1994.
  4. ^abMadelung, O (2004).Semiconductors: data handbook (3rd ed.). Springer.ISBN 9783540404880.
  5. ^Petzelt, J.; Grigas, J. (January 1973). "Far infrared dielectric dispersion in Sb2S3, Bi2S3 and Sb2Se3 single crystals".Ferroelectrics.5 (1):59–68.Bibcode:1973Fer.....5...59P.doi:10.1080/00150197308235780.ISSN 0015-0193.
  6. ^Birkett, Max; Linhart, Wojciech M.; Stoner, Jessica; Phillips, Laurie J.; Durose, Ken; Alaria, Jonathan; Major, Jonathan D.; Kudrawiec, Robert; Veal, Tim D. (2018)."Band gap temperature-dependence of close-space sublimation grown Sb2Se3 by photo-reflectance".APL Materials.6 (8): 084901.doi:10.1063/1.5027157.
  7. ^Bosio, Alessio; Foti, Gianluca; Pasini, Stefano; Spoltore, Donato (January 2023)."A Review on the Fundamental Properties of Sb2Se3-Based Thin Film Solar Cells".Energies.16 (19): 6862.doi:10.3390/en16196862.
  8. ^Wong, Lydia Helena; Zakutayev, Andriy; Major, Jonathan Douglas;Hao, Xiaojing; Walsh, Aron; Todorov, Teodor K.; Saucedo, Edgardo (2019)."Emerging inorganic solar cell efficiency tables (Version 1)".J Phys Energy.1 (3): 032001.Bibcode:2019JPEn....1c2001W.doi:10.1088/2515-7655/ab2338.hdl:10044/1/70500.
Antimonides
Sb(III)
Organoantimony(III) compounds
Sb(III,V)
Sb(V)
Organoantimony(V) compounds
Salts and covalent derivatives of theselenide ion


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