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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 Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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)
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)
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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