Cu4 O2

semiconductor

· Cu4 O2

Cu₄O₂ is a copper oxide semiconductor compound that represents a mixed-valence copper-oxygen system within the broader family of cuprous and cupric oxides. This material is primarily of research and development interest rather than established industrial production, as it explores intermediate oxidation states between Cu₂O and CuO for potential semiconductor applications. Cu₄O₂ is investigated for photovoltaic devices, photocatalysis, and optoelectronic components where its semiconducting properties and copper-based composition offer potential advantages over conventional oxides, though commercial adoption remains limited compared to more established copper oxide phases.

Research photovoltaicsPhotocatalytic applicationsExperimental semiconductorsOptoelectronic devicesCopper oxide research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	115.2	GPa	—
Shear Modulus(G)	8.500	GPa	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.1349	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.5240	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.

Cu4 O2

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control