RbCaAs — Properties & Data | MatWorld

RbCaAs

ceramic

· RbCaAs

RbCaAs is an ternary ceramic compound composed of rubidium, calcium, and arsenic, belonging to the class of intermetallic ceramics and semiconducting compounds. This material is primarily of research interest rather than established in high-volume industrial production, with investigation focused on its potential in optoelectronic and photonic applications where its compound structure may offer tailored electronic and optical properties. Engineers considering RbCaAs would typically be working in materials research or advanced semiconductor device development, where non-traditional ceramic compositions are explored for specific band-gap engineering, infrared sensing, or quantum applications rather than conventional structural or thermal applications.

optoelectronic researchsemiconductor devicesinfrared detectionphotonic materials developmentquantum material studiesmaterials research prototyping

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	23.67	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2900	-	DFT · OptB88vdW
Shear Modulus(G)	13.04	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	3.213	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)2 entries	1.514	eV	DFT · OptB88vdW
↳	2.530	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)3 entries	13.47	-	DFT · OptB88vdW
↳	13.45	-	DFT · PBE
↳	9.411 range 5.963–12.86median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	6.639	-	DFT · OptB88vdW
↳	4.973	-	DFT · TBmBJ
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Electron Effective Mass(m*e)	0.2533	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	2.560	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	0.000474	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00103	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-73.87	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	411.9	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	12.09	%	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)	-0.9633	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.

RbCaAs

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental