Cu0.2Ga1.8Se2.8

semiconductor

· Cu0.2Ga1.8Se2.8

Cu0.2Ga1.8Se2.8 is a p-type semiconductor compound derived from the chalcopyrite family, specifically a copper-gallium selenide alloy with reduced copper content. This material is primarily studied for photovoltaic and optoelectronic applications, particularly as an absorber layer in thin-film solar cells and as a potential substitute for higher-cadmium alternatives in polycrystalline solar technologies. The reduced copper ratio relative to gallium and selenium composition influences bandgap tuning and carrier dynamics, making it of interest for research into efficiency improvements and materials sustainability in next-generation photovoltaic devices.

thin-film solar cellsphotovoltaic absorber layersoptoelectronic devicesbandgap engineeringresearch semiconductorsalternative to CdTe/CIGS solar cells

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.860	eV	—

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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.

Cu0.2Ga1.8Se2.8

Electrical Properties

Regulatory Screening

Environmental

Export Control