K2 Cu2 Se2

semiconductor

· K2 Cu2 Se2

K₂Cu₂Se₂ is an experimental semiconducting compound combining potassium, copper, and selenium elements, belonging to the family of multinary chalcogenide semiconductors. This material is primarily investigated in research settings for photovoltaic and thermoelectric applications, where its layered structure and electronic properties offer potential advantages in energy conversion devices. As a relatively unexplored compound, it represents an emerging candidate in the search for earth-abundant alternatives to conventional semiconductor materials, though practical industrial adoption remains limited and further development is needed.

photovoltaic researchthermoelectric devicesthin-film solar cellsmaterials researchsemiconductor developmentenergy conversion

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	6,072.3	ksi	—
Shear Modulus(G)	3,655	ksi	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.3672	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.7650	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.

K2 Cu2 Se2

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control