TaTaO3 — Properties & Data | MatWorld

TaTaO3

ceramic

· TaTaO3

Tantalum pentoxide (Ta₂O₅) is a high-refractive-index ceramic oxide commonly used as a thin-film material in optical and electronic applications. It is valued in photonics, microelectronics, and integrated photonic devices for its optical transparency, high dielectric constant, and chemical stability, making it a preferred alternative to silica-based materials where enhanced refractive index contrast or superior dielectric performance is required.

optical coatings and filtersintegrated photonics waveguidescapacitor dielectricsthin-film opticsmicroelectronic devicesresearch photonic applications

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

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Method

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	DFT · GLLB-SC
Magnetic Moment(μB)	3.262	μB	DFT

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	0.8400	eV/atom	DFT

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.

TaTaO3

Electrical Properties

Other Properties

Regulatory Screening

Environmental