Cadmium arsenide

Cadmium arsenide
Cadmium arsenide
Identifiers
CAS number 12006-15-4
ChemSpider 10678197
EC number 234-484-1
Jmol-3D images Image 1
Properties
Molecular formula Cd3As2
Molar mass 487.08 g/mol
Appearance solid, dark grey
Density 3.031
Solubility in water decomposes in water
Hazards
NFPA 704
NFPA 704.svg
1
4
0
W
U.S. Permissible
exposure limit (PEL)
5 micrograms (Cd)/m3
LD50 no data
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Cadmium arsenide (Cd3As2) is a crystalline semiconductor with a tetragonal structure in the II-V family. It is a narrow gap semiconductor with an energy gap of 0.14 eV. The electron mobility is very large at ambient temperature. It is a n-type intrinsic semiconductor.

Cadmium arsenide can be prepared as amorphous semiconductive glass.

Cadmium arsenide shows the Nernst effect.

Cadmium arsenide is used in infrared detectors using Nernst effect, and in thin-film dynamic pressure sensors. It can be also used to make magnetoresistors, and in photodetectors. [1]

Cadmium arsenide can be used as a dopant for HgCdTe.

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