Erbium disilicide

Erbium disilicide

Names
Other names Erbium silicide, erbium(II) silicide
Identifiers
CAS Number	12020-28-9  Y
3D model (JSmol)	Interactive image
ChemSpider	129556665
EC Number	234-656-6
PubChem CID	170843474
InChI InChI=1S/Er.2Si Key: BXEFGWNSOIIKRB-UHFFFAOYSA-N
SMILES [Si].[Si].[Er]
Properties
Chemical formula	ErSi2
Molar mass	223.429 g·mol−1
Appearance	Dark gray powder
Density	7.26 g/cm3
Solubility in water	insoluble
Structure
Crystal structure	Orthorhombic
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Erbium disilicide is a binary inorganic compound of erbium and silicon with the chemical formula ErSi₂. ^{[1] [2]} Other erbium silicides (ErSi, Er₂Si) are known. ^[3]

Physical properties

ErSi₂ forms dark grey crystals of orthorhombic system. ^[2] Space group P6/mmm. ^[4]

Uses

The compound has been investigated as for semiconductor use, optoelectronics, high-temperature electronics, alloy additives and protective coatings. ^[5]

References

1. Huang, W.; Ru, G. P.; Jiang, Y. L.; Qu, X. P.; Li, B. Z.; Liu, R.; Lu, F. (10 January 2008). "Erbium silicide formation and its contact properties on Si(100)" . Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena . 26 (1): 164–170. Bibcode:2008JVSTB..26..164H. doi:10.1116/1.2831485. ISSN   1071-1023 . Retrieved 2 July 2025.
2. "Erbium Silicide | CAS 12020-28-9 | ErSi2 | AMERICAN ELEMENTS ®". American Elements . Retrieved 2 July 2025.
3. Walker, Perrin; Tarn, William H. (11 December 1990). CRC Handbook of Metal Etchants. CRC Press. p. 378. ISBN   978-1-4398-2253-1 . Retrieved 2 July 2025.
4. Donnay, Joseph Désiré Hubert (1978). Crystal Data: Inorganic compounds 1967-1969. National Bureau of Standards. p. 118. Retrieved 2 July 2025.
5. "Erbium Silicide Powder (ErSi2)". samaterials.com. Retrieved 2 July 2025.