W3 Se4 S2 — Properties & Data | MatWorld

W3 Se4 S2

semiconductor

· W3 Se4 S2

W3Se4S2 is a mixed-metal chalcogenide semiconductor compound containing tungsten, selenium, and sulfur in a layered crystal structure. This material belongs to the family of transition metal dichalcogenides and related compounds, which are of significant research interest for next-generation optoelectronic and photovoltaic devices. The combination of multiple chalcogen elements (Se and S) with tungsten creates tunable electronic and optical properties compared to single-chalcogenide phases, making it a candidate for applications where bandgap engineering and light-matter interaction are critical.

photovoltaic devicesoptoelectronic sensorstwo-dimensional materials researchlight-emitting devicesenergy conversion applicationsmaterials screening for next-generation semiconductors

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	37.08	GPa	DFT · OptB88vdW
Shear Modulus(G)	27.23	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.5260	eV	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.6230	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.

W3 Se4 S2

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control