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450030

Sigma-Aldrich

Strontium fluoride

anhydrous, powder, 99.9% trace metals basis

Synonym(s):

Strontium difluoride

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About This Item

Linear Formula:
SrF2
CAS Number:
7783-48-4
Molecular Weight:
125.62
EC Number:
232-000-3
MDL number:
MFCD00011251
UNSPSC Code:
12352302
PubChem Substance ID:
24868530
NACRES:
NA.23

grade

anhydrous

assay

99.9% trace metals basis

form

powder

impurities

≤1500.0 ppm Trace Metal Analysis

bp

2489 °C (lit.)

mp

>1400 °C (lit.)

density

4.24 g/mL at 25 °C (lit.)

SMILES string

F[Sr]F

InChI

1S/2FH.Sr/h2*1H;/q;;+2/p-2

InChI key

FVRNDBHWWSPNOM-UHFFFAOYSA-L

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General description

Strontium fluoride(SrF2) is a wideband gap anhydrous solid with excellent optical properties. It has a low refractive index, high transmission in the infrared and ultraviolet spectral range, and extremely low solubility in water. It is widely used as a coating material for lenses, optical windows, and prisms.

Application

Strontium fluoride can be used:

  • To produce an ultra-thin layer on the ZnO electron transport layer in inverted polymer solar cells. SrF2 thin layer enhances electron extraction efficiency and reduces carrier recombination loss, remarkably improving photovoltaic performance.
  • To prepare a highly luminescent Ce3+-doped SrF2 nanophosphor for dye-sensitized solar cells. These nanophosphors help to enhance light harvesting and power conversion efficiencies.
  • To fabricate non-toxic and dopant-free electron-selective contact for silicon solar cells. This contact has exceptional stability and thickness tolerance.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Enhanced Power Conversion Efficiency Using a Ce3+: SrF2 Down-Shifting Nanophosphor-Based Photoelectrode for Dye-Sensitized Solar Cell Applications
Arun Kumar Samuel, et al.
ACS Applied Energy Materials, 4, 7112-7121 (2021)
Strontium fluoride and zinc oxide stacked structure as an interlayer in high-performance inverted polymer solar cells
Shuai Huang, et al.
ACS Applied Materials & Interfaces, 11, 2149-2158 (2018)
Fabrication and optical property of highly transparent SrF2 ceramic
Weiwei Li, et al.
Materials Letters, 159, 210-212 (2015)
Kan Usuda et al.
Biological trace element research, 167(1), 84-90 (2015-03-10)
Various fluoride compounds are widely used in industry. The present risk assessment study was conducted using a series of inorganic binary fluorides of the type XFn, where X(n) = Na(+), K(+), Li(+), Mg(2+), Ca(2+), Sr(2+), Ba(2+), Al(3+), Nd(3+), La(3+), Ce(3+), Sm(3+), Gd(3+)
Bikramjit Basu et al.
Journal of biomedical materials research. Part B, Applied biomaterials, 103(6), 1168-1179 (2014-10-11)
One of the desired properties for any new biomaterial composition is its long-term stability in a suitable animal model and such property cannot be appropriately assessed by performing short-term implantation studies. While hydroxyapatite (HA) or bioglass coated metallic biomaterials are

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