WO2
ceramic· WO2
WO₂ is a tungsten oxide ceramic compound that belongs to the family of transition metal oxides. This material exhibits interesting electronic and structural properties that make it relevant for research into semiconducting and electrochromic applications. WO₂ and related tungsten oxides are explored for smart windows, gas sensors, and energy storage devices due to their ability to reversibly change optical and electrical properties under applied voltage or chemical stimulation.
electrochromic smart windowsgas sensing devicesenergy storage and batteriesresearch semiconductorsphotocatalytic applicationsthin-film electronics
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | 228.8 | GPa | — | ||
| ↳ | 60.31 | GPa | — | ||
Exfoliation Energy(Eexf) | 102.7 | meV/atom | — | ||
Poisson's Ratio(ν) | 0.4100 | - | — | ||
Shear Modulus(G)2 entries | 75.17 | GPa | — | ||
| ↳ | -3.790 | GPa | — |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 8.401 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 11.33 | - | — | ||
Electronic Dielectric Tensor(ε∞) | Matrix (redacted) | - | — | ||
Total Dielectric Tensor(ε) | Matrix (redacted) | - | — | ||
Magnetic Moment(μB) | 1.355 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -12.27 | µV/K | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 1.892 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -2.037 | eV/atom | — | ||
| ↳ | -0.3163 | eV/atom | — |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
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.