Hg2GeSe4

ceramic

· Hg2GeSe4

Hg₂GeSe₄ is a quaternary chalcogenide ceramic compound composed of mercury, germanium, and selenium—a material class primarily explored in semiconducting and photonic applications rather than structural engineering. This compound belongs to the family of mercury-based chalcogenides, which are investigated for nonlinear optical properties, infrared transmission, and potential optoelectronic device functionality; however, it remains largely a research material without established high-volume industrial production. Engineers would consider this compound for specialized infrared optics, radiation detection windows, or experimental photonic devices where mercury chalcogenide's unique optical and electronic characteristics outweigh the challenges of toxicity, synthesis complexity, and limited material standardization.

infrared optics and windowsnonlinear optical devicesradiation detectionphotonic research applicationssemiconductor research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	5,085	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3000	-	DFT · OptB88vdW
Shear Modulus(G)	2,565.7	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2477	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	0.2860	eV	DFT · OptB88vdW
↳	1.413	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)2 entries	48.42	-	DFT · OptB88vdW
↳	31.11 range 27.10–35.13median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	18.36	-	DFT · OptB88vdW
↳	8.201	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.03333	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.05000	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.8476	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000197	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00246	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-38.94	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	295	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	33.52	%	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)	-0.1259	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.

Hg2GeSe4 — Properties & Data | MatWorld

Hg2GeSe4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental