Mo2 W2 Se4 S4

semiconductor

· Mo2 W2 Se4 S4

Mo₂W₂Se₄S₄ is a mixed-metal dichalcogenide semiconductor combining molybdenum and tungsten with selenium and sulfur anions. This is a research-stage layered material belonging to the transition metal dichalcogenide (TMD) family, engineered to combine properties of individual MoSe₂, MoS₂, WS₂, and WSe₂ phases. Such alloyed TMDs are investigated for applications requiring tunable bandgaps, enhanced charge carrier mobility, or modified optical/electronic response compared to single-metal dichalcogenides; potential uses span flexible electronics, photocatalysis, and energy storage where layer-dependent properties and heterostructure engineering are advantages over conventional semiconductors.

two-dimensional semiconductorsphotocatalytic applicationsflexible electronicsenergy storage devicesoptoelectronic researchtransition metal dichalcogenides

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	65.34	GPa	—
Shear Modulus(G)	45.73	GPa	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.5983 range 0.5725–0.6242median of 2 measurements	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.7450 range -0.7550–-0.7350median of 2 measurements	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.

Mo2 W2 Se4 S4

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control