GeTePb2Se2 — Properties & Data | MatWorld

GeTePb2Se2

ceramic

· JVASP-100396· GeTePb2Se2

GeTePb₂Se₂ is a quaternary chalcogenide ceramic compound belonging to the family of lead-tellurium-selenium materials, which are primarily investigated for thermoelectric and optoelectronic applications. This material is largely in the research and development phase rather than established in high-volume production, but the lead-tellurium-selenium family is valued for its narrow bandgap properties and potential use in mid-infrared detection, thermal energy harvesting, and solid-state cooling devices where conventional semiconductors fall short. Engineers consider these compounds when designing systems that must operate in harsh thermal environments or convert waste heat to electrical power at moderate temperatures.

thermoelectric generatorsinfrared detectorsthermal energy harvestingsolid-state cooling deviceshigh-temperature electronics researchoptoelectronic sensors

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	39.11	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2900	-	DFT · OptB88vdW
Shear Modulus(G)	19.91	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	7.306	kg/m³	DFT · OptB88vdW

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Filter by

Method

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.6870	eV	DFT · OptB88vdW
↳	0.9230	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	24.27	-	DFT · OptB88vdW
↳	18.01	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	30.86	%	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)	0.02480	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.4090	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.

GeTePb2Se2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental