TaSe2 — Properties & Data | MatWorld

TaSe2

ceramic

· JVASP-589· TaSe2

Tantalum diselenide (TaSe2) is a layered transition metal dichalcogenide ceramic compound with a two-dimensional crystal structure similar to graphite, where tantalum atoms are sandwiched between planes of selenium atoms. While primarily a research material rather than an established industrial ceramic, TaSe2 is investigated for applications in nanoelectronics, energy storage, and catalysis due to its tunable electronic properties and the ability to exfoliate into atomically thin layers. Engineers consider this material for emerging technologies where ultrathin semiconducting films, enhanced surface reactivity, or unusual electronic behavior in reduced dimensions can provide performance advantages over conventional bulk ceramics.

two-dimensional nanomaterialssemiconductor devicescatalytic surfacesenergy storage electrodesresearch-phase applicationsthin-film electronics

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	45.67	GPa	DFT · OptB88vdW
Exfoliation Energy(Eexf)	96.41	meV/atom	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2200	-	DFT · OptB88vdW
Shear Modulus(G)	33.18	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	8.340	kg/m³	DFT · OptB88vdW

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

Filter by

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	116.9	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000221	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000192	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	58.25	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	53.35	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

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
Energy Above Hull(ΔEhull)	0.01850	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.8047	eV/atom	DFT · OptB88vdW

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.

TaSe2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental