Ytterbium disilicide

Ytterbium disilicide

Names
Other names Ytterbium silicide, ytterbium(II) silicide
Identifiers
CAS Number	12039-89-3  Y
3D model (JSmol)	Interactive image
ChemSpider	85296285
ECHA InfoCard	100.031.724
EC Number	234-910-6
CompTox Dashboard (EPA)	DTXSID601014258
InChI InChI=1S/2Si.Yb Key: SREWIOGHKCMTPP-UHFFFAOYSA-N
SMILES [Yb].[Si].[Si]
Properties
Chemical formula	Si2Yb
Molar mass	229.215 g·mol−1
Appearance	Crystals
Density	7.54 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

Ytterbium disilicide is a binary inorganic compound of ytterbium and silicon with the chemical formula YbSi₂. ^{[1] [2]}

Synthesis

An attempt to produce ytterbium disilicide was made by reducing ytterbium oxide with silicon at 1550–1600 °C. ^[3]

Physical properties

Ytterbium disilicide forms crystals of the hexagonal system, space group P6/mmm. ^{[4] [5]}

Uses

YbSi₂ is a promising thermoelectric material with a high power factor^{[ clarification needed ]} at room temperature as it exhibits large Seebeck coefficient, accompanied by high electrical conductivity, leading to high power factor. ^[6]

References

1. Kuz’min, M. V.; Mittsev, M. A.; Mukhuchev, A. M. (1 October 2015). "Mechanism of formation of ytterbium disilicide nanofilms on the Si(111) surface". Physics of the Solid State . 57 (10): 2112–2116. Bibcode:2015PhSS...57.2112K. doi:10.1134/S1063783415100169. ISSN   1090-6460 . Retrieved 24 June 2025.
2. Claeys, Cor L. (2007). ULSI Process Integration 5. The Electrochemical Society. p. 253. ISBN   978-1-56677-572-4 . Retrieved 24 June 2025.
3. Samsonov, Grigoriĭ Valentinovich (1965). High-temperature Compounds of Rare Earth Metals with Nonmetals. Consultants Bureau. p. 206. Retrieved 24 June 2025.
4. Haynes, William M. (19 April 2016). CRC Handbook of Chemistry and Physics. CRC Press. ISBN   978-1-4398-8050-0 . Retrieved 24 June 2025.
5. Donnay, Joseph Désiré Hubert (1973). Crystal Data: Inorganic compounds. National Bureau of Standards. p. H-119. Retrieved 24 June 2025.
6. Tanusilp, Sora-at; Ohishi, Yuji; Muta, Hiroaki; Yamanaka, Shinsuke; Nishide, Akinori; Hayakawa, Jun; Kurosaki, Ken (2018). "Ytterbium Silicide (YbSi2): A Promising Thermoelectric Material with a High Power Factor at Room Temperature". Physica status solidi (RRL) – Rapid Research Letters . 12 (2): 1700372. Bibcode:2018PSSRR..1200372T. doi:10.1002/pssr.201700372. ISSN   1862-6270 . Retrieved 24 June 2025.