Niobium nitride - Misplaced Pages

Niobium nitride
Names

IUPAC name Niobium nitride
Identifiers
CAS Number	24621-21-4
ECHA InfoCard	100.042.132
PubChem CID	90560
Properties
Chemical formula	NbN
Molar mass	106.91 g/mol
Appearance	gray solid
Density	8.470 g/cm
Melting point	2,573 °C (4,663 °F; 2,846 K)
Solubility in water	reacts to form ammonia
Structure
Crystal structure	cubic, cF8
Space group	Fm3m, No. 225
Hazards
Flash point	Non-flammable
Safety data sheet (SDS)	External MSDS
Related compounds
Other cations	Vanadium nitride Tantalum nitride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). N verify (what is ?) Infobox references

Chemical compound

Niobium nitride is a compound of niobium and nitrogen (nitride) with the chemical formula NbN. At low temperatures (about 16 K) NbN becomes a superconductor, and is used in detectors for infrared light.

Uses

Niobium nitride's main use is as a superconductor.
- Detectors based on it can detect a single photon in the 1-10 micrometer section of the infrared spectrum, which is important for astronomy and telecommunications. It can detect changes up to 25 gigahertz.
- Superconducting NbN nanowires can be used in particle detectors with high magnetic fields.
Niobium nitride is also used in absorbing anti-reflective coatings.
In 2015, it was reported that Panasonic Corp. has developed a photocatalyst based on niobium nitride that can absorb 57% of sunlight to support the decomposition of water to produce hydrogen gas as fuel for electrochemical fuel cells.

References

Y. M. Shy, L. E. Toth and R. Somasundaram (1973). "Superconducting properties, electrical resistivities, and structure of NbN thin films". Journal of Applied Physics. 44 (12): 5539–5545. Bibcode:1973JAP....44.5539S. doi:10.1063/1.1662193.
J. W. Kooi; J. J. A. Baselmans; M. Hajenius; J. R. Gao; T. M. Klapwijk; P. Dieleman; A. Baryshev; G. de Lange (2007). "IF impedance and mixer gain of NbN hot electron bolometers" (PDF). Journal of Applied Physics. 101 (4): 044511. Bibcode:2007JAP...101d4511K. doi:10.1063/1.2400086.
S. P. Chockalingam; Madhavi Chand; John Jesudasan; Vikram Tripathi; Pratap Raychaudhuri (2009). "Superconducting properties and Hall effect in epitaxial NbN thin films". Physical Review B. 77 (21): 214503. arXiv:0804.2945. Bibcode:2008PhRvB..77u4503C. doi:10.1103/PhysRevB.77.214503. S2CID 14097116.
M Hajenius, J J A Baselmans, J R Gao, T M Klapwijk, P A J de Korte, B Voronov and G Gol'tsman (2004). "Low noise NbN superconducting hot electron bolometer mixers at 1.9 and 2.5 THz". Superconductor Science and Technology. 17 (5): S224 – S228. Bibcode:2004SuScT..17S.224H. doi:10.1088/0953-2048/17/5/026. S2CID 250740737.{{cite journal}}: CS1 maint: multiple names: authors list (link)
"When superconductivity material science meets nuclear physics". phys.org. Retrieved 9 June 2020.
Yamamura, Tetsushi (August 2, 2015). "Panasonic moves closer to home energy self-sufficiency with fuel cells". Asahi Shimbun. Archived from the original on August 7, 2015. Retrieved 2015-08-02.