Boron arsenide

Boron arsenide

Chembox new
Name = Boron arsenide
ImageFile = Boron arsenide.jpg
ImageName = Boron arsenide
Section1 = Chembox Identifiers
CASOther = 12005-69-5
Section2 = Chembox Properties
Formula = BAs
MolarMass = 85.733 g/mol
Appearance =
Density = 5.22 g/cm3, solid
Solubility = Insoluble
MeltingPt = 2027°C
BoilingPt =
Section4 = Chembox Thermochemistry
DeltaHf =
Entropy =
Section7 = Chembox Hazards
EUClass = Dangerous for the environment (N)
RPhrases =
SPhrases =
Section8 = Chembox Related
OtherAnions = Boron nitride
Boron phosphide
Boron antimonide
OtherCations = Aluminium arsenide
Gallium arsenide
Indium arsenide

Boron arsenide is a chemical compound of boron and arsenic. It is a cubic (sphalerite) semiconductor with a lattice constant of 0.4777 nm and an indirect bandgap of roughly 1.5 eV. It can be alloyed with gallium arsenide.

Boron arsenide also occurs as an icosahedral boride, B12As2. http://spectra.phy.bris.ac.uk/research_semiconductor.aspThis form can be grown on substrates such as silicon carbide.

Applications

Solar cells can be fabricated from boron arsenide.

References

* "Boron Chemistry at the Millennium", Editor: R.B. King, Elsevier Science & Technology (1999) ISBN 978-0-444-72006-1
* "Ordered Boron Arsenide", P. D. Ownby, Journal of the American Ceramic Society, vol. 58, 7-8, pp 359-360, 1975.
* "BAs and boride III-V alloys", Gus L. W. Hart and Alex Zunger, Phys. Rev. B vol. 62, 13522 (2000) http://arxiv.org/abs/cond-mat/0009063

External links

* [http://www.fiz-chemie.de/infotherm/html/molpages/00%5C33%5C/mol3388.html Fiz Chemie Berlin] thermophysical database entry
* [http://www.matweb.com/search/SpecificMaterial.asp?bassnum=DSEM17 Matweb data]


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