Te4 W4 S4

semiconductor

· Te4 W4 S4

Te4W4S4 is a mixed-metal chalcogenide compound combining tellurium, tungsten, and sulfur in a quaternary semiconducting phase. This material belongs to the family of layered transition-metal chalcogenides and is primarily of research interest rather than established in commercial production. The compound shows potential for optoelectronic and thermoelectric applications due to its tunable bandgap and layered crystal structure, though development remains in the exploratory stage and engineering adoption requires further characterization of reproducibility and scalability.

experimental semiconductorsthermoelectric researchoptoelectronic deviceslayered materialsphotovoltaic developmentmaterials research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00740	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.3470	eV/atom	—

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

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.

Te4 W4 S4

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control