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Boron phosphide

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Boron phosphide
Identifiers
CAS Number
ECHA InfoCard 100.039.616 Edit this at Wikidata
PubChem CID
CompTox Dashboard (EPA)
Properties
Chemical formula BP
Molar mass 41.7855 g/mol
Appearance maroon powder
Density 2.90 g/cm
Melting point 1100 °C (decomposes)
Band gap 2 eV (indirect)
Electron mobility 5400 cm/(V*s) (300 K)
Thermal conductivity 4 W/(cm*K) (300 K)
Refractive index (nD) 3.05 (0.63 µm)
Structure
Crystal structure Zinc Blende
Space group Td-F-43m
Coordination geometry Tetrahedral
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). checkY verify (what is  ?) Infobox references
Chemical compound

Boron phosphide (BP) is a chemical compound of boron and phosphorus. It is a semiconductor .

History

Crystals of boron phosphide have been synthesized by Henri Moissan as early as in 1891 .

Appearance

Pure BP is almost transparent, n-type crystals are orange-red whereas p-type ones are dark red .

Chemical properties

BP is not attacked by acids or boiling aqueous alkali water solutions. It is only attacked by molten alkalis..

Physical properties

  • coefficient of thermal expansion ~3x10 /°K
  • heat capacity CP ~ 0.8 J/(g*K) (300 K)
  • Debye temperature = 1000 K
  • relatively high microhardness of 32 GPa (100 g load).
  • electron and hole mobilities of few hundred cm/(V*s) (up to 500)

See also

Related materials

References

  1. refractive index database
  2. Boron Phosphide, a III–V Compound of Zinc-Blende Structure P. Popper & T. A. Ingles Nature 179, 1075, 1957 doi:10.1038/1791075a0
  3. Moissan, H., Comp. Rend. 113 (1891) 726
  4. ^ L. I. Berger "Semiconductor materials" CRC Press, 1996 ISBN 0849389127, 9780849389122 (available on google books), p. 199
  • Boron Chemistry at the Millennium, Editor: R.B. King, Elsevier Science & Technology (1999) ISBN 0-444-72006-5
  • P-n junction type boron phosphide-based semiconductor light-emitting device and production method thereof, United States Patent 6831304
  • Semiconducting Properties of Cubic Boron Phosphide, B. Stone and D. Hill, Phys. Rev. Lett. vol. 4, 282–284 (1960) doi:10.1103/PhysRevLett.4.282

External links

Boron compounds
Boron pnictogenides
Boron halides
Acids
Boranes
Boron oxides and sulfides
Carbides
Organoboron compounds


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