Bi2O3
semiconductorBismuth oxide (Bi₂O₃) is a semiconducting ceramic compound widely employed in optoelectronic and photocatalytic applications, particularly in visible-light-responsive systems where its narrow bandgap makes it suitable for light absorption and charge generation. In industry, it serves as a key material in photocatalysts for water purification and pollutant degradation, in optical coatings, and as a dopant or active phase in advanced ceramics and thin-film devices. Engineers select Bi₂O₃ over traditional wide-bandgap semiconductors when visible-light sensitivity and relatively high density are advantageous, though its stability and performance typically benefit from structural modification or composite integration to enhance photocatalytic efficiency and reduce recombination losses.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)3 entries | 7,785.2 | ksi | — | ||
| ↳ | 7,902.6 | ksi | — | ||
| ↳ | 10,574.7 | ksi | — | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | ||
Elastic Anisotropy(AU) | 0.8900 | - | — | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | ksi | — | ||
Exfoliation Energy(Eexf) | 221.4 | meV/atom | — | ||
Poisson's Ratio(ν)2 entries | 0.2640 | - | — | ||
| ↳ | 0.3000 | - | — | ||
Shear Modulus(G)3 entries | 4,367.1 | ksi | — | ||
| ↳ | 4,333.2 | ksi | — | ||
| ↳ | 5,159 | ksi | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.2980 | lb/in³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)3 entries | 2.860 | eV | — | ||
| ↳ | 0.000 | eV | — | ||
| ↳ | 0.4180 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 42.19 | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -245.9 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.2604 | eV/atom | — | ||
Formation Energy(ΔHf)3 entries | -0.8140 | eV/atom | — | ||
| ↳ | -1.183 | eV/atom | — | ||
| ↳ | -1.103 | eV/atom | — |