Rb4Br2O — Properties & Data | MatWorld

Rb4Br2O

ceramic

· Rb4Br2O

Rb4Br2O is an inorganic ceramic compound combining rubidium, bromine, and oxygen in a mixed halide-oxide structure. This material is primarily of research and theoretical interest rather than established in mainstream engineering applications; it belongs to the family of halide perovskites and related complex oxides that are being investigated for solid-state ionic conductivity, optical properties, and potential energy storage applications. The compound's mixed-anion composition and moderate density make it a candidate for exploratory work in solid electrolytes, photonic materials, or other advanced ceramic systems where halide-oxide frameworks may offer advantages in ion transport or electromagnetic response.

solid-state electrolytes (research)halide ceramic compoundsionic conductor candidatesoptical/photonic materials (experimental)energy storage systemsmaterials science research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	16.94	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3200	-	DFT · OptB88vdW
Shear Modulus(G)	8.590	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	3.420	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)	0.4990	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	9.059 range 2.883–15.24median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)	3.071	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	0.3600	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	2.300	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000659	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00227	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-105.1	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	283	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)	0.01970	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.564	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.

Rb4Br2O

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental