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Cadmium Bromite
Indium(III) Selenide  (In2Se3)
Chemical Formula: CdSe
CAS Number: 1306-24-7
Molecular Weight: 191.39
EC Number: N/A


Purity Available in  99.99%, 99.999%
Shape and particle size Available in powder
Packaging It is packed with Dacron film, then covered with a sealed plastic film bag.
Refractive index N/A
Density 5.81 g/cm3
Melting point 1,240 °C
Boiling point N/A

Cadmium selenide is a red or red-black inorganic compound derived from cadmium and selenium. Also known as cadmium(II) selenide or cadmium(2+) selenide, this compound is notable for its semiconducting properties. Cadmium selenide comes in three distinct crystalline structures: wurzite, sphalerite, and rock-salt, with sphalerite samples converting to wurtzite when heated and rock-salt structures appearing only under high pressure.


Cadmium selenide is primarily of interest today for it’s potential as a nanopowder. While earlier applications exist and continue to utilize this material, most modern research focuses on the potential of CdSe nanoparticles.

  • Nanoscience. Cadmium selenide is of exceptional interest as a nanoparticle due to a property called quantum confinement, in which electrons of the material are confined to a small volume. Because this property is size-dependent, cadmium selenide nanoparticles can be altered based on size. This makes cadmium selenide a common material for quantum dots.
  • Luminescence. Cadmium selenide is highly luminescent, a trait which is exploited in some forms of lighting and imaging.
  • Photoresistors. Cadmium has seen limited use in photoresistors, thanks to its natural transparency to infra-red light.
  • IR instrumentation. As with its use in photoresistors, cadmium selenide is sometimes used to create lenses for IR-based instruments, allowing infrared light to pass through while blocking other light.

AHP Materials offers cadmium selenide at 99.999% purity as part of our standard catalog. To inquire about other preparations, contact us today about custom orders.

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    2935 Westhollow Dr., Houston, TX 77082
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