YbGeO3 — Properties & Data | MatWorld

YbGeO3

semiconductor

· YbGeO3

YbGeO3 is a rare-earth germanate ceramic compound combining ytterbium oxide with germanium oxide, belonging to the family of advanced ceramic semiconductors used in high-temperature and optoelectronic applications. This material is primarily investigated in research contexts for potential use in thermal management systems, scintillation detectors, and high-temperature structural ceramics where its dense crystal structure and rare-earth doping provide favorable electronic and thermal properties. Engineers consider rare-earth germanates like YbGeO3 when conventional semiconductors reach performance limits in extreme environments, though commercial availability and cost typically restrict use to specialized aerospace, nuclear, and scientific instrumentation sectors.

high-temperature ceramicsscintillation detectorsthermal management systemsoptoelectronic substratesradiation detectionadvanced research applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	200.7	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2200	-	DFT · OptB88vdW
Shear Modulus(G)	137.4	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	9.431	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	1.216	eV	DFT · OptB88vdW
↳	3.509	eV	DFT · TBmBJ
↳	2.697	eV	DFT · PBE
Dielectric Constant (Relative Permittivity)(εr)	80.79	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	4.245	-	DFT · OptB88vdW
↳	3.189	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.2400	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.070	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000465	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00246	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-67.65	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	379.8	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	1.240	%	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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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-2.688	eV/atom	DFT
↳	-2.583	eV/atom	DFT · OptB88vdW

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

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

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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.

YbGeO3

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

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