Mg2Al2Se5 — Properties & Data | MatWorld

Mg2Al2Se5

metal

· Mg2Al2Se5

Mg2Al2Se5 is a layered mixed-metal selenide compound combining magnesium and aluminum with selenium, representing an emerging class of materials under active research for semiconductor and optoelectronic applications. This compound belongs to the family of metal chalcogenides, which are being investigated for potential use in thin-film photovoltaics, thermoelectric devices, and 2D material applications due to their tunable electronic properties and layered crystal structure. The material is still primarily in the research phase rather than established industrial production, with potential to compete in niche applications where its specific combination of mechanical stiffness, low density, and electronic characteristics provide advantages over conventional semiconductors or metal alloys.

photovoltaic researchthermoelectric devices2D materials/exfoliationoptoelectronic componentslightweight composite researchsemiconductor thin films

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)2 entries	14.69	GPa	DFT
↳	41.51	GPa	DFT · OptB88vdW
Exfoliation Energy(Eexf)	27.56	meV/atom	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2700	-	DFT · OptB88vdW
Shear Modulus(G)2 entries	9.580	GPa	DFT
↳	23.29	GPa	DFT · OptB88vdW

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
Density(ρ)	3.900	kg/m³	DFT · OptB88vdW

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	1.307	eV	DFT · OptB88vdW
↳	2.284	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	11.69	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	6.472	-	DFT · OptB88vdW
↳	5.028	-	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	0.000712	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00126	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-66.58	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	282.2	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	16.88	%	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)	0.00270	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.116	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.

Mg2Al2Se5

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