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647543

Sigma-Aldrich

Silicon

wafer (single side polished), <111>, N-type, contains no dopant, diam. × thickness 3 in. × 0.5 mm

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Synonym(s):
Silicon element
Linear Formula:
Si
CAS Number:
Molecular Weight:
28.09
EC Number:
MDL number:
UNSPSC Code:
12352300
PubChem Substance ID:
NACRES:
NA.23

form

crystalline (cubic (a = 5.4037))
wafer (single side polished)

Quality Level

does not contain

dopant

diam. × thickness

3 in. × 0.5 mm

bp

2355 °C (lit.)

mp

1410 °C (lit.)

density

2.33 g/mL at 25 °C (lit.)

semiconductor properties

<111>, N-type

SMILES string

[Si]

InChI

1S/Si

InChI key

XUIMIQQOPSSXEZ-UHFFFAOYSA-N

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Physical properties

0 vortex defects. Etch pitch density (EPD) < 100 (cm-2). Resistivity >1,000 Ω•cm
Oxygen content: ≤ 1~1.8 x 1018 /cm3; Carbon content: ≤ 5 x 1016 /cm3; Boule diameter: 1~8 ″

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品

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Chengyong Li et al.
Journal of nanoscience and nanotechnology, 13(3), 2272-2275 (2013-06-13)
Mesoporous Si-C-O fibers were fabricated by air activation of a kind of carbon-rich SiC-C fibers at 600 degrees C. The SiC-C fibers were prepared from the hybrid precursor of polycarbosilane and pitch through melt-spinning, air curing and pyrolysis in nitrogen.
Bo-Soon Kim et al.
Journal of nanoscience and nanotechnology, 13(5), 3622-3626 (2013-07-19)
A subwavelength structure (SWS) was formed via a simple chemical wet etching using a gold (Au) catalyst. Single nano-sized Au particles were fabricated by metallic self-aggregation. The deposition and thermal annealing of the thin metallic film were carried out. Thermal
Seungil Park et al.
Journal of nanoscience and nanotechnology, 13(5), 3397-3402 (2013-07-19)
We investigated the thin film growths of hydrogenated silicon by hot-wire chemical vapor deposition with different flow rates of SiH4 and H2 mixture ambient and fabricated thin film solar cells by implementing the intrinsic layers to SiC/Si heterojunction p-i-n structures.
Jaewoo Lee et al.
Journal of nanoscience and nanotechnology, 13(5), 3495-3499 (2013-07-19)
A spin-casting process for fabricating polycrystalline silicon sheets for use as solar cell wafers is proposed, and the parameters that control the sheet thickness are investigated. A numerical study of the fluidity of molten silicon indicates that the formation of
Hyunhui Kim et al.
Journal of nanoscience and nanotechnology, 13(5), 3559-3563 (2013-07-19)
Silicon sheets were fabricated by a new fabricating method, spin casting with various rotation speeds of the graphite mold. The microstructure of spin-cast silicon sheets were investigated using an electron probe microanalyzer (EPMA) and scanning electron microscope/electron backscatter diffraction/orientation image

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