Antimony_selenide

Antimony triselenide

Antimony triselenide

Chemical compound

Antimony triselenide is the chemical compound with the formula Sb2Se3. The material exists as the sulfosalt mineral antimonselite (IMA symbol: Atm[2]), which crystallizes in an orthorhombic space group.[3] In this compound, antimony has a formal oxidation state +3 and selenium −2. The bonding in this compound has covalent character as evidenced by the black color and semiconducting properties of this and related materials.[4] The low-frequency dielectric constant (ε0) has been measured to be 133 along the c axis of the crystal at room temperature, which is unusually large.[5] Its band gap is 1.18 eV at room temperature.[6]

Quick Facts Names, Identifiers ...

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

Applications

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

  1. [1]
    NIOSH Pocket Guide to Chemical Hazards. "#0036". National Institute for Occupational Safety and Health (NIOSH).
  2. [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. [3]
    Jambor, J. L.; Grew, E. S."New Mineral Names" American Mineralogist, Volume 79, pages 387-391, 1994.
  4. [4]
    Madelung, O (2004). Semiconductors: data handbook (3rd ed.). Springer. ISBN 9783540404880.
  5. [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. [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. [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. [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.


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