Gallium (II) selenide is a binary inorganic compound of gallium and selenium with the formula GaSe, red-brown crystals that are not soluble in water.
| Gallium selenide | |
|---|---|
 | |
| Are common | |
| Systematic name | Gallium Selenide (II) |
| Traditional names | Gallium selenium |
| Chem. formula | Gase |
| Physical properties | |
| condition | red brown crystals |
| Molar mass | 148.68 g / mol |
| Density | 5.03 g / cm³ |
| Thermal properties | |
| T. melt. | 960 ° C |
| Chemical properties | |
| Solubility in water | not soluble |
| Classification | |
| Reg. CAS number | 12024-11-2 |
| PubChem | |
| Reg. EINECS number | |
| Smiles | |
| Inchi | |
| ChemSpider | |
Getting
- Fusion of gallium and selenium:
Physical Properties
Gallium (II) selenide forms red-brown crystals of two modifications:
- hexagonal syngony, space group P 6 , cell parameters a = 0.373 nm, c = 1.588 nm, Z = 4;
- trigonal syngonium, space group R 3m , cell parameters a = 0.3739 nm, c = 2.3862 nm, Z = 6.
There is evidence of two more crystalline modifications.
It has semiconductor properties.
Application
- Used in photodiodes , polarized radiation sensors, photoresistors .
Literature
- Chemical Encyclopedia / Editorial Board: Knunyants I.L. et al. - M .: Soviet Encyclopedia, 1988. - T. 1. - 623 p.
- Chemistry Handbook / Editorial: Nikolsky B.P. et al. - 2nd ed., rev. - M.-L.: Chemistry, 1966. - T. 1. - 1072 p.
- Chemistry Handbook / Editorial: Nikolsky B.P. et al. - 3rd ed., rev. - L .: Chemistry, 1971. - T. 2. - 1168 p.
- Greenwood N., Earnshaw A. Chemistry of elements. - Binom. Laboratory of Knowledge, 2008. - T. 1. - 608 p. - ISBN 978-5-94774-373-9 .
- Inorganic Synthesis Guide: 6 Vol. / Ed. Brower, G. - M .: Mir, 1985 .-- T. 3 .-- 392 p.
- Chemistry and Technology of Rare and Scattered Elements, Part I / Ed. K.A. Bolshakova. - M .: Higher. School, 1976 .-- 368 p.
- Atomic diffusion in semiconductor structures. G. B. Abdullaev et al. Atomizdat. Moscow., 1980