RbLiSe

ceramic

· RbLiSe

RbLiSe is a layered ceramic compound composed of rubidium, lithium, and selenium, belonging to the class of mixed-metal chalcogenides. This material is primarily of research interest rather than established industrial production, studied for its potential in optoelectronic and solid-state applications where its layered crystal structure and anisotropic properties could offer advantages in niche roles such as ion conductors, semiconductor devices, or infrared optics. The material's weak interlayer bonding (characteristic of layered ceramics) makes it a candidate for exfoliation into two-dimensional nanosheets, positioning it within emerging research on van der Waals materials for next-generation electronics and photonics.

Research and development (not commercial production)Layered semiconductor researchTwo-dimensional material exfoliationSolid-state ion conductorsInfrared optical applicationsThin-film device prototyping

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	3,640.4	ksi	DFT · OptB88vdW
Exfoliation Energy(Eexf)	100.1	meV/atom	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2600	-	DFT · OptB88vdW
Shear Modulus(G)	2,175.6	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1311	lb/in³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)3 entries	2.576	eV	DFT · OptB88vdW
↳	4.246	eV	DFT · TBmBJ
↳	3.280	eV	DFT · HSE06
Dielectric Constant (Relative Permittivity)(εr)3 entries	8.293	-	DFT · OptB88vdW
↳	8.970	-	DFT · PBE
↳	6.324 range 4.197–8.451median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	4.471	-	DFT · OptB88vdW
↳	3.638	-	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	0.000447	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00144	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-74.89	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	339	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	0.000	%	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.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.311	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.

RbLiSe — Properties & Data | MatWorld

RbLiSe

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental