TaCu3Se3S

metal

· JVASP-104689· TaCu3Se3S

TaCu₃Se₃S is an experimental ternary compound combining tantalum, copper, selenium, and sulfur—a mixed chalcogenide system that bridges metallic and semiconducting character. This material remains primarily a research compound; its potential lies in thermoelectric and optoelectronic applications where copper-based chalcogenides and tantalum-containing phases have shown promise for solid-state energy conversion and photovoltaic studies.

thermoelectric energy conversion (research)chalcogenide semiconductorssolid-state device materials (exploratory)photovoltaic absorber layers (potential)high-temperature applications (limited deployment)

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2160	lb/in³	DFT · OptB88vdW

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

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Method

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	1.728	eV	DFT · OptB88vdW
↳	1.787	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	8.600	-	DFT · OptB88vdW
↳	7.768	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	27.56	%	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)	-0.5491	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

Export Control

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.

TaCu3Se3S — Properties & Data | MatWorld

TaCu3Se3S

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

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