Cu2 Ga2 Se4

semiconductor

· Cu2 Ga2 Se4

Cu₂Ga₂Se₄ is a quaternary semiconductor compound belonging to the chalcopyrite family, composed of copper, gallium, and selenium elements. This material is primarily investigated in photovoltaic and optoelectronic research, where its tunable bandgap and direct semiconductor properties make it a candidate for thin-film solar cells and light-emitting applications. While not yet widely commercialized compared to established alternatives like CdTe or CIGS absorbers, Cu₂Ga₂Se₄ represents a research-stage material of interest for next-generation photovoltaic devices and potentially for infrared detection systems due to its semiconductor characteristics.

photovoltaic absorber layersthin-film solar cellsoptoelectronic devicesinfrared detectorsresearch semiconductors

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	62.52	GPa	—
Shear Modulus(G)	29.73	GPa	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.7084	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.4750	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 Ga2 Se4

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control