K2Ge2PbS6 — Properties & Data | MatWorld

K2Ge2PbS6

Name: K2Ge2PbS6
Brand: MatWorld

semiconductor

· K2Ge2PbS6

K2Ge2PbS6 is a quaternary semiconductor compound belonging to the metal chalcogenide family, combining alkali metals (potassium), group IV elements (germanium and lead), and sulfide anions in a layered crystalline structure. This material is primarily investigated in research contexts for infrared photonics and nonlinear optical applications, where its sulfide chemistry offers potential advantages in wavelength conversion and mid-infrared sensing compared to more conventional semiconductors.

infrared optics researchnonlinear optical devicesmid-infrared detectorsphotonic materials developmentsolid-state physics experimentation

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	3.477	kg/m³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)3 entries	2.850	eV	Measured
↳	2.041	eV	DFT · OptB88vdW
↳	2.853	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	6.040	-	DFT · OptB88vdW
↳	4.681	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00113	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00109	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-272.2	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	301.2	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	6.390	%	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)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.8128	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

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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.

K2Ge2PbS6

Physical Properties

Electrical Properties

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