Ga1.2Cu0.8Se2.2

semiconductor

· Ga1.2Cu0.8Se2.2

Ga1.2Cu0.8Se2.2 is a quaternary semiconductor compound combining gallium, copper, and selenium in a non-stoichiometric composition, belonging to the I-III-VI2 chalcogenide semiconductor family. This material is primarily of research interest for photovoltaic and optoelectronic applications, particularly as an absorber layer or window material in thin-film solar cells and photodetectors, where its tunable bandgap and potential for high absorption coefficients offer advantages over conventional binary or ternary semiconductors. The copper-gallium-selenide system represents an alternative to CdTe and CIGS technologies, with potential for cost reduction and improved efficiency in next-generation photovoltaic devices, though it remains largely in experimental development stages.

thin-film photovoltaicssolar cellsphotodetectorsoptoelectronic devicesabsorber layersresearch semiconductors

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.580	eV	—

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.

Ga1.2Cu0.8Se2.2

Electrical Properties

Regulatory Screening

Environmental

Export Control