TlGeF3 — Properties & Data | MatWorld

TlGeF3

ceramic

· JVASP-36981· TlGeF3

TlGeF3 is a halide ceramic compound composed of thallium, germanium, and fluorine, belonging to the family of complex fluoride ceramics with perovskite-related crystal structures. This material remains primarily in the research and development phase, studied for its potential in optical and photonic applications where fluoride ceramics offer transparency across infrared wavelengths and low phonon energy that minimizes optical losses. Engineers and material scientists investigate such thallium-germanium fluoride compounds for specialized roles in solid-state laser systems, infrared optics, and scintillation detection where conventional oxide ceramics fall short, though limited commercial availability and toxicity considerations related to thallium content restrict deployment to specialized research and defense applications.

infrared optics researchsolid-state laser developmentscintillation detectorsphotonic materials researchspecialized optical windowshigh-energy physics instrumentation

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	20.07	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3200	-	DFT · OptB88vdW
Shear Modulus(G)	8.740	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	5.657	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	3.436	eV	DFT · OptB88vdW
↳	4.648	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	24.14	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	3.468	-	DFT · OptB88vdW
↳	2.629	-	DFT · TBmBJ
Electron Effective Mass(m*e)	2.317	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.717	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.4298	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00190	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00111	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-311.6	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	239.8	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	0.000	%	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)	-2.129	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.

TlGeF3

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental