RbTaO3 — Properties & Data | MatWorld

RbTaO3

semiconductor

· RbTaO3

RbTaO3 is a perovskite semiconductor compound composed of rubidium, tantalum, and oxygen, belonging to the family of complex metal oxides with potential ferroelectric and photocatalytic properties. While primarily a research material rather than a widely commercialized compound, it is investigated for applications in photocatalysis, ferroelectric devices, and optoelectronic systems where its semiconductor band structure and crystal symmetry offer advantages over simpler oxide alternatives. The perovskite family is of significant interest in materials science for tunable electronic and optical properties, making RbTaO3 relevant for engineers exploring next-generation functional ceramics and solid-state devices.

photocatalytic materials researchferroelectric device developmentoptoelectronic semiconductorssolid-state sensor componentsfunctional ceramic coatingsexperimental energy conversion systems

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	19,246.5	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3600	-	DFT · OptB88vdW
Shear Modulus(G)	9,740.7	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2796	lb/in³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)4 entries	2.228	eV	DFT · PBE
↳	4.300	eV	DFT · GLLB-SC
↳	2.391	eV	DFT · OptB88vdW
↳	3.351	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	90.83	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	5.495	-	DFT · OptB88vdW
↳	4.655	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.7400	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.730	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)3 entries	0.000	μB	DFT
↳	-0.000338	μB	DFT
↳	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)2 entries	0.1757	C/m²	DFT · OptB88vdW
↳	8.926	C/m²	DFT · PBE
Piezoelectric Stress Tensor(eij)	Matrix (redacted)	C/m²	DFT · PBE
Thermoelectric Power Factor(PF)2 entries	0.00375	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00237	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-292.7	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	425.3	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	1.980	%	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)3 entries	-2.824	eV/atom	DFT
↳	-0.5800	eV/atom	DFT
↳	-2.836	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.

RbTaO3

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

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