HfTl4Te4 — Properties & Data | MatWorld

HfTl4Te4

ceramic

· JVASP-33876· HfTl4Te4

HfTl4Te4 is a ternary ceramic compound combining hafnium, thallium, and tellurium—a research-phase material belonging to the family of heavy-element chalcogenides. This is an experimental composition studied primarily in materials science research rather than established industrial production, with potential relevance to thermoelectric, optoelectronic, or solid-state device applications given its constituent elements' known properties in similar systems.

thermoelectric researchsolid-state electronics (experimental)high-density ceramic compoundsoptoelectronic materials developmentmaterials database reference

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	8.292	kg/m³	DFT · OptB88vdW

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.5400	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	16.20	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	0.5567	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.4133	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000620	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00156	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-141	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	190	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

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)	-0.4935	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.

HfTl4Te4

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental