KGdGeS4 — Properties & Data | MatWorld

KGdGeS4

ceramic

· JVASP-118971· KGdGeS4

KGdGeS4 is a complex sulfide ceramic compound containing potassium, gadolinium, germanium, and sulfur, belonging to the rare-earth sulfide ceramic family. This material is primarily of research interest for infrared optics and photonic applications, where its crystal structure and optical transparency in the mid-to-far infrared range make it attractive for specialized optical components; it represents an emerging class of materials being investigated as an alternative to more conventional infrared materials in scenarios where enhanced thermal stability or specific refractive index properties are advantageous.

infrared opticsphotonic devicesoptical windowsresearch/developmentalsolid-state laser hosts

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1342	lb/in³	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.504	eV	DFT · OptB88vdW

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)	-1.542	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.

KGdGeS4

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental