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| ImageFile = NaCl polyhedra.png |
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| ImageFile = NaCl polyhedra.png |
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| IUPACName = Niobium nitride |
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| IUPACName = Niobium nitride |
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| OtherNames = |
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| OtherNames = |
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| Section1 = {{Chembox Identifiers |
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|Section1={{Chembox Identifiers |
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| CASNo = 24621-21-4 |
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| CASNo = 24621-21-4 |
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| CASNo_Ref = {{cascite}} |
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| CASNo_Ref = {{cascite|correct|CAS}} |
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| PubChem = |
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| PubChem = 90560 |
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| Section2 = {{Chembox Properties |
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|Section2={{Chembox Properties |
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| Formula = NbN |
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| Formula = NbN |
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| MolarMass = 106.91 g/mol |
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| MolarMass = 106.91 g/mol |
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| Appearance = gray solid |
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| Appearance = gray solid |
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| Density = 8.470 g/cm<sup>3</sup> |
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| Density = 8.470 g/cm<sup>3</sup> |
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| MeltingPt = 2573 °C |
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| MeltingPtC = 2573 |
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| BoilingPt = |
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| Solubility = reacts to form ] |
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| BoilingPt = |
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| Solubility = reacts to form ] |
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| Section3 = {{Chembox Structure |
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|Section3={{Chembox Structure |
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| CrystalStruct = ], ] |
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| CrystalStruct = ], ] |
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| SpaceGroup = Fm<u style="text-decoration:overline">3</u>m, No. 225 |
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| SpaceGroup = Fm<u style="text-decoration:overline">3</u>m, No. 225 |
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| FlashPt = Non-flammable |
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| FlashPt = Non-flammable |
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| OtherCations = ]<br/>] |
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| OtherCations = ]<br/>] |
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'''Niobium nitride''' is a compound of ] and ] (]) with the ] NbN. At low temperatures (about 16 K) NbN becomes a ], and is used in detectors for ].<ref>{{cite journal | author = Y. M. Shy, L. E. Toth and R. Somasundaram | title = Superconducting properties, electrical resistivities, and structure of NbN thin films | year = 1973 | journal = ] | volume = 44 | issue = 12 | pages = 5539–5545 | doi = 10.1063/1.1662193 | bibcode = 1973JAP....44.5539S }}</ref><ref>{{cite journal |author1=J. W. Kooi |author2=J. J. A. Baselmans |author3=M. Hajenius |author4=J. R. Gao |author5=T. M. Klapwijk |author6=P. Dieleman |author7=A. Baryshev |author8=G. de Lange | title = IF impedance and mixer gain of NbN hot electron bolometers | year = 2007 | journal = ] | volume = 101 |issue=4 | pages = 044511 | doi = 10.1063/1.2400086 |bibcode=2007JAP...101d4511K |url=https://pure.rug.nl/ws/files/58255219/IF_impedance_and_mixer_gain_of_NbN_hot_electron_bolometers.pdf }}</ref><ref>{{cite journal |author1=S. P. Chockalingam |author2=Madhavi Chand |author3=John Jesudasan |author4=Vikram Tripathi |author5=Pratap Raychaudhuri | title = Superconducting properties and Hall effect in epitaxial NbN thin films | year = 2009 | journal = ] | volume = 77 |issue=21 | pages = 214503 | doi = 10.1103/PhysRevB.77.214503 |arxiv = 0804.2945|bibcode=2008PhRvB..77u4503C |s2cid=14097116 }}</ref> |
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'''Niobium nitride''' is a compound of ] and ] with the ] NbN. At low temperatures (about 10 K), niobium nitride becomes a ], and is used in detectors for ]. |
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==Uses== |
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==Uses== |
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*Niobium nitride's main use is as a superconductor. |
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*Niobium nitride's main use is as a superconductor. Detectors based on it can detect a single ] in the 1-10 ] section of the infrared ], which is important for ] and ]. It can detect changes up to 25 gigahertz. |
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**Detectors based on it can detect a single ] in the 1-10 ] section of the infrared ],<ref>{{cite journal | author = M Hajenius, J J A Baselmans, J R Gao, T M Klapwijk, P A J de Korte, B Voronov and G Gol'tsman | title = Low noise NbN superconducting hot electron bolometer mixers at 1.9 and 2.5 THz | year = 2004 | journal = ] | volume = 17 | issue = 5 | pages = S224–S228 | doi = 10.1088/0953-2048/17/5/026 | bibcode = 2004SuScT..17S.224H | s2cid = 250740737 }}</ref> which is important for ] and ]. It can detect changes up to 25 gigahertz. |
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**Superconducting NbN nanowires can be used in ]s with high magnetic fields.<ref>{{Cite web|url=https://phys.org/news/2020-03-superconductivity-material-science-nuclear-physics.html|title=When superconductivity material science meets nuclear physics|website=phys.org|accessdate=9 June 2020}}</ref> |
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*Niobium nitride is also used in absorbing ]s. |
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*Niobium nitride is also used in absorbing ]s. |
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*In 2015, it was reported that ] has developed a ] based on niobium nitride that can absorb 57% of sunlight to support the ] of water to produce ] gas as fuel for ] ]s.<ref name=asahi>{{cite news| last=Yamamura| first=Tetsushi| url=http://ajw.asahi.com/article/sci_tech/technology/AJ201508020014| title=Panasonic moves closer to home energy self-sufficiency with fuel cells| work=]| date=August 2, 2015| accessdate=2015-08-02| url-status=dead| archiveurl=https://web.archive.org/web/20150807010324/http://ajw.asahi.com/article/sci_tech/technology/AJ201508020014| archivedate=August 7, 2015}}</ref> |
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==Safety== |
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Niobium nitride reacts with ] to produces ] gas, a hazardous by-product. |
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==References== |
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==References== |
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{{Reflist}} |
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*{{cite web|url=http://www.webelements.com/compounds/niobium/niobium_nitride.html |title=Niobium nitride |accessdate=2006-08-08|work=webelements.com }} |
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==Further reading== |
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{{Niobium compounds}} |
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{{Niobium compounds}} |
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{{Nitrides}} |
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{{DEFAULTSORT:Niobium Nitride}} |
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{{DEFAULTSORT:Niobium Nitride}} |
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