K4CdAs2 — Properties & Data | MatWorld

K4CdAs2

ceramic

· K4CdAs2

K₄CdAs₂ is a quaternary ceramic compound combining potassium, cadmium, and arsenic in a fixed stoichiometric ratio. This is a research-phase material rather than an established engineering ceramic; it belongs to the family of metal arsenide compounds that have been investigated primarily for semiconductor and optoelectronic properties. The material's potential lies in specialized applications requiring semiconducting or photonic behavior, though it remains largely confined to academic and laboratory studies rather than mainstream industrial production.

experimental semiconductorsphotonic researchoptical materials developmentcompound semiconductor researchmaterials science databaseslab-scale characterization

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	2.614	kg/m³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.6840	eV	DFT · OptB88vdW
↳	1.916	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)2 entries	8.880	-	DFT · PBE
↳	7.093 range 5.415–8.771median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	6.727	-	DFT · OptB88vdW
↳	4.592	-	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
Thermoelectric Power Factor(PF)2 entries	0.000555	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000877	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-78.38	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	378.2	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	24.85	%	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)	-0.4956	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.

K4CdAs2

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental