CuGaSe2

semiconductor

· CuGaSe2

CuGaSe2 is a ternary semiconductor compound belonging to the I-III-VI2 chalcopyrite family, combining copper, gallium, and selenium in a crystalline structure. This material is primarily investigated for photovoltaic and optoelectronic applications, particularly as an absorber layer in thin-film solar cells and photodetectors, where its direct bandgap and strong light absorption make it a promising alternative to cadmium-based compounds. While still largely in the research and development phase rather than high-volume production, CuGaSe2 is notable for its potential to offer improved environmental sustainability and radiation hardness compared to conventional CdTe or CIGS photovoltaic materials.

thin-film solar cellsphotodetectorsinfrared optoelectronicsspace radiation-tolerant photovoltaicsresearch-stage semiconductorsenvironmental-friendly PV alternatives

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.710	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.

CuGaSe2

Electrical Properties

Regulatory Screening

Environmental

Export Control