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Cadmium Bromite
Indium(III) Selenide  (In2Se3)
Chemical Formula: GaSe
CAS Number: 12024-11-2
Molecular Weight: 148.69
EC Number: N/A


Purity Available in  99.99%, 99.999%
Shape and particle size Available in powder, Shot
Packaging It is packed with Dacron film, then covered with a sealed plastic film bag.
Refractive index N/A
Density 5.03 g/cm3
Melting point 960 °C
Boiling point N/A

Gallium selenide

Gallium selenide, also known as gallium(II) selenide or gallium monoselenide, is a brown compound composed of gallium and selenium. Currently, much of the interest in gallium selenide is focused on nanoparticles of high purity and its potential as an optical material, especially at nanoparticle scales.


While it shows considerable potential as a photo-conductor, nonlinear optics material, and infrared conversion material, it continues to be of limited value commercially due to the difficulty of exploiting its properties on a large scale.

  • Photoconductor. Most academic and commercial interest in gallium selenide focuses on its properties as a photoconductor, i.e. its increased electrical conductivity in response to electromagnetic radiation. While successful applications have been developed, practical limitations exist due to the difficulty of producing single crystals of gallium selenide or cutting those crystals without unexpected breaks along cleavage lines. Doping with indium shows promise in resolving the latter problem, while advances in nanoscience may resolve the former.  
  • Nonlinear optics. Gallium selenide is particularly interesting as a potential second harmonic generation crystal in nonlinear optics. It could be used to convert electromagnetic radiation from one wavelength to another, in particular converting far-infrared radiation.

AHP Materials offers GaSe at 99.999% purity. To more information on this material, contact us today.

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     AHP Materials, Inc.
    2935 Westhollow Dr., Houston, TX 77082
    Tel: 281-409-3838  Fax: 281-870-8002
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