Si2

semiconductor
· Si2

Si2 is a silicon-based compound semiconductor, likely referring to a silicon-rich silicide or a specific silicon polymorph with potential applications in advanced electronics and materials research. The material exhibits mechanical stiffness and moderate density characteristics typical of intermetallic or ceramic-class semiconductors. While not a mainstream commercial semiconductor like Si or SiC, Si2 represents an experimental or emerging composition of interest for high-temperature electronics, power devices, or specialized optoelectronic applications where silicon-based compounds offer advantages over single-element silicon.

high-temperature electronicspower semiconductor devicesresearch and developmentemerging optoelectronicsrefractory compoundswide-bandgap device exploration

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
PropertyValueUnitConditionsSource
Bulk Modulus(K)2 entries
87.27
GPa
22.39
GPa
Poisson's Ratio(ν)
0.2700
-
Shear Modulus(G)2 entries
63.28
GPa
8.290
GPa
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
4.445
kg/m³
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)2 entries
0.7314
eV
0.000
eV
Magnetic Moment(μB)
0.000
µB
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
0.3166
eV/atom
Formation Energy(ΔHf)2 entries
0.000
eV/atom
0.3109
eV/atom
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
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.