Al2S3 — Properties & Data | MatWorld

Al2S3

Name: Al2S3
Brand: MatWorld

metal

· Al2S3

Aluminum sulfide (Al₂S₃) is an inorganic ceramic compound combining aluminum and sulfur, belonging to the family of metal chalcogenides. It is primarily used in specialized research and development contexts rather than large-scale industrial production, particularly in materials science investigations of semiconductor properties, optical coatings, and solid-state chemistry. Engineers consider Al₂S₃ for niche applications requiring sulfide-based ceramics, though its moisture sensitivity and limited commercial availability make it less common than established alternatives like aluminum oxide or aluminum nitride in production environments.

semiconductor researchoptical coating developmentsolid-state chemistry studiesthin-film materialslaboratory-scale synthesisexperimental ceramics

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	5,811.7	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2500	-	DFT · OptB88vdW
Shear Modulus(G)	3,486.7	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.08468	lb/in³	DFT · OptB88vdW

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Method

Property	Value	Unit	Conditions
Band Gap(Eg)3 entries	4.100	eV	Measured
↳	2.862	eV	DFT · OptB88vdW
↳	3.774	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	13.49	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	5.564	-	DFT · OptB88vdW
↳	4.574	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.2706	C/m²	DFT · OptB88vdW
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	0.3400	%	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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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.00950	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-1.223	eV/atom	DFT · OptB88vdW
↳	-1.349	eV/atom	Measured

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.

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

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.

Al2S3

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

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