Zinc Oxide (ZnO)
Verifiedsemiconductor· ZnO· Zinc Oxide
Zinc oxide (ZnO) is a wide-bandgap semiconductor ceramic compound with a hexagonal wurtzite crystal structure, widely available as both bulk material and thin films. It is extensively used in optoelectronic devices (LEDs, UV detectors, laser diodes), transparent conducting coatings, varistors for surge protection, and as a pigment and filler in rubber, plastics, and cosmetics. ZnO is favored over competing wide-bandgap semiconductors for UV applications due to its large exciton binding energy, abundance, and cost-effectiveness; it also offers good thermal stability and non-toxicity, making it a preferred alternative to cadmium-based compounds in many consumer and industrial applications.
UV LEDs and photodetectorsTransparent conductive coatingsVaristors and surge protectionRubber and polymer additivesCosmetics and pharmaceuticalsGas sensors
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Young's Modulus(E) | — | ksi | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Melting Point / Solidus(Tm) | — | °F | — | — | |
Thermal Conductivity(k) | — | BTU/(hr·ft·°F) | — | — | |
Coefficient of Thermal Expansion(α (CTE)) | — | µin/in·°F | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | — | lb/in³ | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | — | eV | — | — | |
Dielectric Constant (Relative Permittivity)(εr) | — | - | — | — |
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.