Cu2 W1 Se4

semiconductor

· Cu2 W1 Se4

Cu₂W₁Se₄ is a quaternary semiconductor compound combining copper, tungsten, and selenium in a layered crystal structure. This material belongs to the family of transition metal chalcogenides and is primarily of research and development interest for optoelectronic and photovoltaic applications. Its notable features include tunable bandgap properties and potential for high charge carrier mobility, making it a candidate for next-generation thin-film solar cells, photodetectors, and integrated photonic devices where conventional semiconductors face cost or performance limitations.

thin-film photovoltaicsphotodetectorsoptoelectronic devicesresearch semiconductorsphotocatalysisintegrated photonics

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	4,391.5	ksi	—
Shear Modulus(G)	2,794.4	ksi	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00790	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.2330	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.

Cu2 W1 Se4

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control