WO2 — Properties & Data | MatWorld

WO2

Name: WO2
Brand: MatWorld

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

Units:

si imperial

Filter by

Method

Property	Value	Unit	Conditions
Bulk Modulus(K)2 entries	228.8	GPa	DFT
↳	60.31	GPa	DFT · OptB88vdW
Exfoliation Energy(Eexf)	102.7	meV/atom	DFT · OptB88vdW
Poisson's Ratio(ν)	0.4100	-	DFT · OptB88vdW
Shear Modulus(G)2 entries	75.17	GPa	DFT
↳	-3.790	GPa	DFT · OptB88vdW

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.

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Density(ρ)	8.401	kg/m³	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Filter by

Method

Property	Value	Unit	Conditions
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	11.33	-	DFT · PBE
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Magnetic Moment(μB)	1.355	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Filter by

Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	1.892	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-0.3163	eV/atom	DFT · OptB88vdW
↳	-2.037	eV/atom	Measured

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.

Verified Unverified Low confidence (<80%) Link to source

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

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.

WO2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental