YbBi2Te4 — Properties & Data | MatWorld

YbBi2Te4

ceramic

· JVASP-53177· YbBi2Te4

YbBi2Te4 is a ternary ceramic compound belonging to the bismuth telluride family, where ytterbium acts as a dopant or structural component. This material is primarily investigated in thermoelectric research contexts, where bismuth telluride-based systems are valued for solid-state heat conversion and cooling applications; ytterbium doping is explored to enhance carrier concentration and reduce thermal conductivity, making it relevant for waste heat recovery and precision temperature control systems that demand alternatives to conventional refrigeration.

thermoelectric cooling deviceswaste heat recovery systemssolid-state power generationresearch-phase materialsthermal energy conversionhigh-temperature sensing applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2710	lb/in³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.6480	eV	DFT · OptB88vdW
↳	1.132	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	21.23	-	DFT · OptB88vdW
↳	13.51	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.7433	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.8600	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00353	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00346	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-202	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	267.3	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	33.81	%	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)	0.1026	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.5692	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.

YbBi2Te4

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental