Antimony triselenide

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Antimony triselenide
Names
Other names
  • Antimonselite
  • Antimony(III) selenide
  • Selenoxyantimony
Identifiers
3D model (
JSmol
)
ChemSpider
ECHA InfoCard
 100.013.870 Edit 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 mass 480.433 g·mol−1
Appearance black crystals
Density 5.81 g/cm3, solid
Melting point 611 °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
Other anions
antimony(III) telluride
Other cations
bismuth(III) selenide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
checkY verify (what is checkY☒N ?)

Antimony triselenide is the

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]

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. ^ a b NIOSH Pocket Guide to Chemical Hazards. "#0036". National Institute for Occupational Safety and Health (NIOSH).
  2. S2CID 235729616
    .
  3. ^ Jambor, J. L.; Grew, E. S."New Mineral Names" American Mineralogist, Volume 79, pages 387-391, 1994.
  4. ^
    ISBN 9783540404880
    .
  5. ISSN 0015-0193
    .
  6. doi:10.1063/1.5027157
    .
  7. doi:10.3390/en16196862
    .
  8. hdl:10044/1/70500
    .


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