Rb2Se — Properties & Data | MatWorld

Rb2Se

ceramic

· Rb2Se

Rb₂Se is an ionic ceramic compound composed of rubidium and selenium, belonging to the family of alkali metal chalcogenides. This material is primarily of research and specialized interest rather than a commodity engineering material, with potential applications in optical, photonic, and solid-state device research where the electronic and thermal properties of alkali chalcogenides are exploited. Its use is limited to laboratory-scale investigations and emerging technologies; engineers would select it for specific functional properties in niche applications rather than for structural or load-bearing roles in conventional engineering systems.

Optical materials researchPhotonic devices (experimental)Solid-state electronicsScintillator developmentHigh-temperature chemistrySpecialized ceramic research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	16.00	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3200	-	DFT · OptB88vdW
Shear Modulus(G)	6.660	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	3.238	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	1.842	eV	DFT · OptB88vdW
↳	3.786	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)3 entries	5.868	-	DFT · OptB88vdW
↳	6.790	-	DFT · PBE
↳	4.790 range 3.408–6.172median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	3.840	-	DFT · OptB88vdW
↳	2.758	-	DFT · TBmBJ
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000737	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000984	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-97.80	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	465.1	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	0.2900	%	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)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.166	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.

Rb2Se

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental