Ytterbium disilicide
| Names | |
|---|---|
| Other names
Ytterbium silicide, ytterbium(II) silicide
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| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.031.724 |
| EC Number |
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CompTox Dashboard (EPA)
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| Properties | |
| Si2Yb | |
| Molar mass | 229.215 g·mol−1 |
| Appearance | Crystals |
| Density | 7.54 g/cm3 |
| insoluble | |
| Structure | |
| Orthorhombic | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Ytterbium disilicide is a binary inorganic compound of ytterbium and silicon with the chemical formula YbSi2.[1][2]
Synthesis
[edit]An attempt to produce ytterbium disilicide was made by reducing ytterbium oxide with silicon at 1550–1600 °C.[3]
Physical properties
[edit]Ytterbium disilicide forms crystals of the hexagonal system, space group P6/mmm.[4][5]
Uses
[edit]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
[edit]- ^ 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.
- ^ Claeys, Cor L. (2007). ULSI Process Integration 5. The Electrochemical Society. p. 253. ISBN 978-1-56677-572-4. Retrieved 24 June 2025.
- ^ Samsonov, Grigoriĭ Valentinovich (1965). High-temperature Compounds of Rare Earth Metals with Nonmetals. Consultants Bureau. p. 206. Retrieved 24 June 2025.
- ^ Haynes, William M. (19 April 2016). CRC Handbook of Chemistry and Physics. CRC Press. ISBN 978-1-4398-8050-0. Retrieved 24 June 2025.
- ^ Donnay, Joseph Désiré Hubert (1973). Crystal Data: Inorganic compounds. National Bureau of Standards. p. H-119. Retrieved 24 June 2025.
- ^ 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.