As4S5 — Properties & Data | MatWorld

As4S5

Name: As4S5
Brand: MatWorld

ceramic

· As4S5

As₄S₅ is an arsenic sulfide ceramic compound belonging to the chalcogenide ceramic family, materials composed of elements from groups 16-17 paired with metalloids or metals. This material exists primarily in research and specialized optical applications rather than mainstream industrial use; arsenic sulfide ceramics are investigated for infrared optics, photonic devices, and specialized glass formulations where their unique optical and thermal properties offer advantages over conventional oxides. Engineers would consider As₄S₅ for niche applications requiring high refractive index, infrared transparency, or photosensitive behavior, though toxicity concerns and limited commercial availability make it unsuitable for general-purpose engineering.

infrared optics and lensesphotonic and optical devicesresearch chalcogenide ceramicsspecialized optical coatingslaboratory and experimental applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	15.20	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2700	-	DFT · OptB88vdW
Shear Modulus(G)	8.960	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	3.340	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	1.591	eV	DFT · OptB88vdW
↳	2.525	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	5.450	-	DFT · PBE
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	8.475	-	DFT · OptB88vdW
↳	6.479	-	DFT · TBmBJ
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Electron Effective Mass(m*e)	1.560	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	2.393	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00192	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00104	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-223.5	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	324.8	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	12.18	%	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.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.1531	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

Export Control

Quality & Standards

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.

As4S5

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control

Quality & Standards