Si2 W1

semiconductor

· Si2 W1

Si₂W (silicon tungsten) is an experimental intermetallic semiconductor compound combining silicon and tungsten in a 2:1 stoichiometric ratio. This material belongs to the family of refractory metal silicides, which are being investigated for high-temperature semiconductor and thermoelectric applications where conventional silicon-based devices fail. Si₂W is primarily a research-phase material, but the silicide family is valued for potential use in extreme thermal environments due to the high melting point and chemical stability of tungsten-bearing phases combined with silicon's semiconductor properties.

high-temperature semiconductorsthermoelectric devicesrefractory applicationsresearch/advanced materialsextreme environment electronicsthermal barrier systems

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	206.9	GPa	—
Shear Modulus(G)	178.6	GPa	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00250	eV	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.1860	eV/atom	—

Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Export Control

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.

Si2 W1

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control