W4 Se2 S6 — Properties & Data | MatWorld

W4 Se2 S6

semiconductor

· W4 Se2 S6

W₄Se₂S₆ is a mixed-chalcogenide semiconductor compound combining tungsten with selenium and sulfur, representing a layered transition metal dichalcogenide (TMD) variant. This material is primarily of research interest rather than established industrial production, investigated for its electronic and photonic properties in nanoelectronic and optoelectronic device platforms. Compared to single-chalcogenide TMDs like MoS₂ or WS₂, the dual-chalcogenide composition offers tunable bandgap and altered electronic band structure, making it potentially valuable for next-generation thin-film transistors, photodetectors, and energy conversion applications where chalcogenide engineering is critical.

thin-film transistors (experimental)photodetectors and photodiodesenergy conversion and photovoltaics (research phase)nanoelectronic device engineering2D materials researchoptoelectronic prototyping

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.6634	eV	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.7790	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.

W4 Se2 S6

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control