Zinc Oxide (ZnO) — Properties & Data | MatWorld

Zinc Oxide (ZnO)

Name: Zinc Oxide (ZnO)
Brand: MatWorld

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

Units:

si imperial

Property OverviewNormalized to typical max values

Property	Value	Unit	Conditions	Source
Young's Modulus(E)	111.0	GPa	—

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1 interactive curve for this material

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Method

Property	Value	Unit	Conditions
Melting Point / Solidus(Tm)	2,248	K	—
Thermal Conductivity(k)2 entries	64.50	W/(m·K)	Measured
↳	54.00	W/(m·K)	—
Thermal Conductivity vs Temperature(k(T))	Curve (8 pts)	W/(m·K)	Measured · bulk
Coefficient of Thermal Expansion(α (CTE))	0.00000475	1/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, or test environment.

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Property	Value	Unit	Conditions	Source
Density(ρ)	5.606	kg/m³	—

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)3 entries	3.440	eV	Measured
↳	0.9650	eV	DFT · OptB88vdW
↳	2.473	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	8.500	-	—
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	5.157	-	DFT · OptB88vdW
↳	3.145	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.2200	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	2.340	me	DFT · OptB88vdW · 27°C
Thermoelectric Power Factor(PF)2 entries	0.000424	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00157	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-65.14	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	352.1	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	13.17	%	DFT · TBmBJ

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, or test environment.

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2 interactive curves for this material

Stress-strain, S-N fatigue and environmental knockdown curves are free with an account.

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Property	Value	Unit	Conditions	Source
Refractive Index vs Wavelength(n(λ))2 entries	Curve (101 pts)	-	Measured · ordinary ray
↳	Curve (101 pts)	-	Measured · extraordinary ray

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, or test environment.

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Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-1.816	eV/atom	Measured

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Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

Regulatory Screening

Environmental

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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.

Zinc Oxide (ZnO)

Mechanical Properties

Thermal Properties

Physical Properties

Electrical Properties

Optical Properties

Other Properties

Regulatory Screening

Environmental

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