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Tungsten silicide | CAS Number: 12039-88-2

Catalog Number
ACM12039882
Product Name
Tungsten silicide
Structure
CAS Number
12039-88-2
EC Number
234-909-0
IUPAC Name
bis($l^{3}-silanylidyne)tungsten
Synonyms
TUNGSTEN SILICIDE;TUNGSTEN DISILICIDE;TUNGSTEN SILICIDE, -325 MESH;TUNGSTEN SILICIDE (99.7%-W);TUNGSTEN SILICIDE, 99.995% (METALS BASIS EXCLUDING MO), MO ;Tungsten silicide, 99.995% (metals basis excluding Mo), Mo ;Tungsten silicide, 99.5% (metals basis)
Molecular Weight
240.01
Exact Mass
239.90500
Molecular Formula
Si2W
Melting Point
900ºC
Flash Point
N/A
Density
9.88 g/cm3
Purity
96%
Appearance
Blue-gray powder or pieces, no odor.
SMILES
[Si]#[W]#[Si]
InChIKey
WQJQOUPTWCFRMM-UHFFFAOYSA-N
H-Bond Donor
0
H-Bond Acceptor
0
Safty Description
S22
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1High-efficiency WSi superconducting nanowire single-photon detectors for quantum state engineering in the near infrared.

Le Jeannic H, Verma VB, Cavaillès A, Marsili F, Shaw MD, Huang K, Morin O, Nam SW, Laurat J.

Opt Lett. 2016 Nov 15;41(22):5341-5344. doi: 10.1364/OL.41.005341.

We report on high-efficiency superconducting nanowire single-photon detectors based on amorphous tungsten silicide and optimized at 1064 nm. At an operating temperature of 1.8 K, we demonstrated a 93% system detection efficiency at this wavelength with a dark noise of a few counts per second. Combined with cavity-enhanced spontaneous parametric downconversion, this fiber-coupled detector enabled us to generate narrowband single photons with a heralding efficiency greater than 90% and a high spectral brightness of 0. Read More

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Email:
Tel:1-201-478-8534
1-516-662-5404
Fax: 1-516-927-0118
Address: Suite 212, Waverly Plaza, 755 Waverly Avenue, Holtsville, NY 11742, USA