SnO2
semiconductor· SnO2
Tin dioxide (SnO2) is a wide-bandgap n-type semiconductor oxide widely used in gas sensing, optoelectronics, and transparent conducting applications. It is the material of choice for combustible gas detection (CO, methane, hydrogen) in industrial safety systems and consumer air quality monitors, and serves as a transparent electrode in displays and photovoltaic devices due to its optical transparency combined with electrical conductivity. SnO2 offers excellent chemical stability and lower processing temperatures than many alternatives, making it attractive for cost-sensitive mass production and integration into flexible electronics platforms.
gas sensors (combustible and toxic gases)transparent conductive electrodesLCD and OLED displaysphotovoltaic cellsair quality monitorscatalytic applications
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | 24,937.4 | ksi | — | ||
| ↳ | 26,994.4 | ksi | — | ||
Exfoliation Energy(Eexf) | 76.45 | meV/atom | — | ||
Poisson's Ratio(ν) | 0.3000 | - | — | ||
Shear Modulus(G)2 entries | 12,556.5 | ksi | — | ||
| ↳ | 14,368.9 | ksi | — |
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) | 0.2432 | lb/in³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 3.600 | eV | — | ||
| ↳ | 0.9640 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)3 entries | 12.59 | - | — | ||
| ↳ | 13.53 | - | — | ||
| ↳ | 8.650 range 4.746–12.55median of 2 measurements | - | — | ||
Electronic Dielectric Tensor(ε∞) | Matrix (redacted) | - | — | ||
Total Dielectric Tensor(ε) | Matrix (redacted) | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -21.94 | µV/K | — |
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 | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.01010 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -1.995 | eV/atom | — | ||
| ↳ | -1.786 | 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
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.