K2 Rb2 O2

semiconductor

· K2 Rb2 O2

K₂Rb₂O₂ is a mixed-alkali metal oxide compound that exhibits semiconductor behavior, belonging to the family of alkali metal peroxides and superoxides. This is primarily a research material studied for its unique electronic and ionic transport properties rather than an established industrial compound. Interest in this material stems from potential applications in energy storage systems, solid-state electrolytes, and fundamental studies of mixed-cation oxide chemistry, though practical engineering applications remain largely exploratory.

solid-state electrolytes (research)battery materials (exploratory)oxygen-ion conductorssemiconductor researchmaterials science synthesischemical energy storage

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	3,556.6	ksi	—
Shear Modulus(G)	100.5	ksi	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.794	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-1.109	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.

K2 Rb2 O2

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control