RbAs — Properties & Data | MatWorld

RbAs

ceramic

· JVASP-10706· RbAs

RbAs is an intermetallic ceramic compound composed of rubidium and arsenic, belonging to the class of binary semiconducting ceramics with a rock-salt or zinc-blende crystal structure. This material is primarily of research and theoretical interest rather than established in large-scale industrial production, with potential applications in solid-state electronics and optoelectronics due to its semiconducting properties. RbAs and related alkali-pnictide compounds are explored for specialized photonic devices, radiation detectors, and advanced semiconductor applications where the unique electronic band structure and thermal properties of alkali-metal compounds offer advantages over conventional III-V semiconductors.

semiconductor researchinfrared optoelectronicsradiation detectionsolid-state physicsexperimental photonicswide-bandgap electronics

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	2,558.5	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3100	-	DFT · OptB88vdW
Shear Modulus(G)	1,222.7	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1391	lb/in³	DFT · OptB88vdW

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Filter by

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.6760	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	15.66	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	8.770	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.1198	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00108	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00173	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-142.9	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	303.4	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)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.5144	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.

RbAs

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental