Bi2 O3
semiconductor· Bi2 O3
Bismuth oxide (Bi₂O₃) is an n-type semiconductor ceramic compound that exists in multiple crystal phases, with the cubic δ-phase being most relevant for electronic applications. It is primarily used in optoelectronic devices, gas sensors, photocatalysts, and emerging applications in solid oxide fuel cells (SOFCs), where its ionic conductivity and optical properties are leveraged. Bi₂O₃ is notable for its low bandgap energy and high dielectric constant compared to conventional semiconductors, making it attractive for applications requiring visible-light responsiveness or high-temperature ionic transport, though it remains less mature than established semiconductor platforms.
Gas sensors and environmental monitoringPhotocatalytic degradation systemsSolid oxide fuel cells (SOFC)Optoelectronic devices and detectorsThermal barrier coatingsVaristors and surge protection
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | — median of 2 measurements | ksi | — | — | |
Shear Modulus(G) | — median of 2 measurements | ksi | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | — median of 2 measurements | eV | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Formation Energy(ΔHf) | — median of 2 measurements | 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.