Te2 W4 Se2 S4

semiconductor

· Te2 W4 Se2 S4

Te₂W₄Se₂S₄ is a mixed chalcogenide semiconductor compound combining tungsten with tellurium, selenium, and sulfur—a quaternary layered material belonging to the transition metal dichalcogenide family. This is a research-phase compound rather than an established industrial material; it is studied for its tunable electronic properties and potential in optoelectronic and energy conversion applications where the heteroatom composition enables bandgap engineering and altered carrier transport compared to binary or ternary variants.

Research photovoltaicsLayered semiconductor devicesOptoelectronic prototypingEnergy harvesting (experimental)Thin-film electronics R&DBandgap engineering studies

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.02500	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.5140	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.

Te2 W4 Se2 S4

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control