Na2 Cu2 Se2

semiconductor

· Na2 Cu2 Se2

Na₂Cu₂Se₂ is a quaternary chalcogenide semiconductor composed of sodium, copper, and selenium, belonging to the family of mixed-metal selenides. This compound is primarily a research material under investigation for photovoltaic and thermoelectric applications, valued for its potential to combine copper's high electrical conductivity with selenium's semiconducting properties in a tunable bandgap structure. Engineers consider this material class for next-generation solar cells and waste-heat recovery systems where cost-effective, earth-abundant alternatives to traditional semiconductors like CdTe or CIGS are needed.

photovoltaic absorber layersthin-film solar cellsthermoelectric devicesmaterials researchsemiconductor development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	6,417	ksi	—
Shear Modulus(G)	3,174.4	ksi	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.4938	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.6410	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.

Na2 Cu2 Se2

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control