Niobium nitride

Niobium nitride

Names
IUPAC name Niobium nitride
Identifiers
CAS Number	24621-21-4  Y
3D model (JSmol)	Interactive image
ChemSpider	28541694
ECHA InfoCard	100.042.132
EC Number	246-362-5
PubChem CID	90560
InChI InChI=1S/N.Nb Key: CFJRGWXELQQLSA-UHFFFAOYSA-N
SMILES N#[Nb]
Properties
Chemical formula	NbN
Molar mass	106.91 g/mol
Appearance	gray solid
Density	8.470 g/cm3
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 [77 °F], 100 kPa). N  verify  (what is  YN ?) Infobox references

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. ^{[1] [2] [3]}

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, ^[4] 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. ^[5]
• 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. ^[6]

References

1. 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.
2. 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.
3. 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.
4. 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.
5. "When superconductivity material science meets nuclear physics". phys.org. Retrieved 9 June 2020.
6. 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.