BeSnAs2 — Properties & Data | MatWorld

BeSnAs2

ceramic

· BeSnAs2

BeSnAs2 is a ternary ceramic compound combining beryllium, tin, and arsenic elements, belonging to the family of intermetallic ceramics and semiconductor materials. This is a research-phase material with limited commercial deployment; compounds in this family are investigated for potential optoelectronic, photovoltaic, and high-frequency device applications where the combination of light elements (Be) with semiconductor-forming groups (Sn, As) may enable unusual bandgap or thermal properties. Engineers would consider BeSnAs2 or related ternary arsenides primarily in advanced materials R&D contexts rather than mature production environments, particularly where experimental high-performance semiconductors or wide-bandgap photonics are being explored.

experimental semiconductorsoptoelectronic researchphotovoltaic prototypeshigh-frequency devicesmaterials researchwide-bandgap electronics

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	5.082	kg/m³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.6730	eV	DFT · OptB88vdW
↳	1.261	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)2 entries	17.27	-	DFT · OptB88vdW
↳	15.09 range 14.16–16.02median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	14.80	-	DFT · OptB88vdW
↳	10.57	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.5067	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.3300	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.5259	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00324	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00296	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-215.1	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	217.9	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	33.26	%	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)	-0.2034	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

Regulatory Screening

Environmental

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.

BeSnAs2

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental