SiAs — Properties & Data | MatWorld

SiAs

Name: SiAs
Brand: MatWorld

semiconductor

· SiAs

SiAs is a compound semiconductor combining silicon and arsenic, belonging to the III-V semiconductor family. While not widely commercialized as a bulk material, SiAs represents a research-phase compound of interest for optoelectronic and electronic device applications where the bandgap and lattice properties could offer advantages over conventional semiconductors. The material's relatively low exfoliation energy suggests potential for producing thin-film or layered forms relevant to modern nanoelectronics and 2D material research.

research semiconductorsoptoelectronic devicesthin-film electronics2D materials/heterostructuresphotovoltaic researchhigh-frequency transistors

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	6,056.8	ksi	DFT · OptB88vdW
Exfoliation Energy(Eexf)	71.43	meV/atom	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2200	-	DFT · OptB88vdW
Shear Modulus(G)	4,088.6	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1326	lb/in³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)3 entries	1.570	eV	Measured
↳	0.9810	eV	DFT · OptB88vdW
↳	1.666	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	13.42	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	12.58	-	DFT · OptB88vdW
↳	9.523	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00352	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00173	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-241	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	201.9	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	29.83	%	DFT · TBmBJ

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, or test environment.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.05699	eV/atom	DFT · OptB88vdW

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

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

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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.

SiAs

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