CoAsSe — Properties & Data | MatWorld

CoAsSe

Name: CoAsSe
Brand: MatWorld

semiconductor

· CoAsSe

CoAsSe is a ternary III-V semiconductor compound combining cobalt, arsenic, and selenium elements, belonging to the broader class of chalcogenide and arsenide semiconductors. This material remains largely in the research and development phase, with potential applications in optoelectronic devices, photovoltaics, and infrared detection systems where tunable bandgap and carrier mobility properties are advantageous. CoAsSe represents an experimental composition within the family of III-V materials, offering researchers the ability to engineer electronic properties through composition control for next-generation semiconductor devices.

Optoelectronic researchInfrared detectors (experimental)Photovoltaic developmentHigh-frequency electronics (R&D phase)Bandgap engineering applicationsCompound semiconductor research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2552	lb/in³	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	0.3550	eV	DFT · OptB88vdW
↳	0.2000	eV	Measured
High-Frequency Dielectric Constant (ε∞)(ε∞)	29.26	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	0.03333	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.03333	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00219	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00152	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-326.5	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	237.6	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)	0.04160	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.3309	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

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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.

CoAsSe

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