Boron arsenide
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2008-02-29T17:00:09Z
Axiosaurus
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{{Chembox new
| Name = Boron arsenide
| ImageFile = Boron arsenide.jpg
<!-- | ImageSize = 200px -->
| 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/cm<sup>3</sup>, 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]]<br />[[Boron phosphide]]<br />[[Boron antimonide]]
| OtherCations = [[Aluminium arsenide]]<br />[[Gallium arsenide]]<br />[[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, B<sub>12</sub>As<sub>2</sub>. http://spectra.phy.bris.ac.uk/research_semiconductor.asp
This form can be grown on substrates such as [[silicon carbide]].
==Applications==
[[Solar cell]]s can be fabricated from boron arsenide.
==References==
{{Citationstyle|date=September 2007}}
<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]
[[Category:Boron compounds]]
[[Category:Arsenides]]
[[Category:III-V compounds]]
[[Category:Semiconductor materials]]
[[zh:砷化硼]]