Cu2 Se2 O8

semiconductor

· Cu2 Se2 O8

Cu₂Se₂O₈ is a mixed-valence copper selenite compound belonging to the family of transition metal oxyselenides, which are layered semiconductors of interest primarily in research contexts rather than established industrial production. This material is investigated for potential optoelectronic and photovoltaic applications due to its semiconductor bandgap and layered crystal structure, though it remains largely in the experimental phase with limited commercial deployment compared to more mature semiconductor alternatives like CdSe or Cu₂ZnSnS₄. The copper and selenium composition makes it relevant to researchers exploring earth-abundant or alternative absorber materials for thin-film solar devices and visible-light photocatalysis.

experimental photovoltaic absorbersphotocatalytic materials researchthin-film semiconductorsoptoelectronic device developmentenergy materials research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00930	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.5850	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 Se2 O8

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control