Ge2S3I2 — Properties & Data | MatWorld

Ge2S3I2

ceramic

· JVASP-5416· Ge2S3I2

Ge₂S₃I₂ is a mixed halide-chalcogenide ceramic compound combining germanium, sulfur, and iodine. This is a research-stage material rather than an established industrial ceramic, belonging to the broader family of chalcohalide glasses and crystals that show promise for infrared optics and solid-state ion conductivity applications. The material's layered structure and moderate exfoliation energy suggest potential as a two-dimensional or van der Waals material for next-generation photonic and electronic devices, particularly in applications requiring wide transparency windows or tunable optical properties in the infrared spectrum.

infrared optics researchsolid-state ion conductorstwo-dimensional materialsphotonic devicesthermal imaging windowsadvanced semiconductor research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Exfoliation Energy(Eexf)	388	meV/atom	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1297	lb/in³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	2.023	eV	DFT · OptB88vdW
↳	3.261	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	5.864	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	5.950	-	DFT · OptB88vdW
↳	4.648	-	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	0.000365	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000201	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-266.3	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	378.7	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	2.520	%	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)	0.01760	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.3025	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.

Ge2S3I2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental