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Merck
CN

752622

Iron disilicide

greener alternative

powder, -20 mesh, 99.9% trace metals basis

Synonym(s):

Iron silicide

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About This Item

Empirical Formula (Hill Notation):
FeSi2
CAS Number:
12022-99-0
Molecular Weight:
112.02
MDL number:
MFCD00016087
UNSPSC Code:
12352103
NACRES:
NA.23

Key Documents

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SMILES string

[Fe](=[SiH2])=[SiH2]

InChI

1S/Fe.2H2Si/h;2*1H2

InChI key

UVUDQHYBXBVHAI-UHFFFAOYSA-N

assay

99.9% trace metals basis

form

powder

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product

particle size

-20 mesh

mp

1220 °C (lit.)

greener alternative category

, Enabling

Quality Level

100

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General description

Iron disilicide (FeSi2) is a direct bandgap (0.85-0.87 eV) semiconductor material that has a high optical absorption coefficient, high Seebeck coefficient, high working temperature and high resistance to oxidation.
We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency. Find details here.

Application

FeSi2 can be used in a variety of optoelectronic applications such as lithium-ion batteries, light-emitting diodes (LEDs) and solar cells.

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
MKBN6937V

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Thermoelectric properties of hot-pressed Al-and Co-doped iron disilicide materials
He Z, et al.
Journal of alloys and compounds, 438(1-2), 303-309 (2007)
Nishida, I.
Physical Review. B, Condensed Matter and Materials Physics, 7, 2710-2710 (1973)
Enhanced Room-Temperature 1.6 mu Electroluminescence from Si-Based Double-Heterostructure Light-Emitting Diodes Using Iron Disilicide
Suzuno M, et al.
Japanese Journal of Applied Physics, 49(4S), 04DG16-04DG16 (2010)
Meng, Q. S.; Fan, W. H.; Chen, R. X.; Munir, Z. A.
J. Alloy Compounds, 492, 303-303 (2010)
Semiconducting nanocrystalline iron disilicide thin films prepared by pulsed-laser ablation
Yoshitake T, et al.
Applied Physics Letters, 83(15), 3057-3059 (2003)
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Articles

Silicides: Promising Thermoelectrics

Higher transition metal silicides are ideal for anisotropic thermoelectric conversion due to their Seebeck coefficient anisotropy and mechanical properties.

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