HfSe3 — Properties & Data | MatWorld

HfSe3

ceramic

· HfSe3

HfSe₃ is a layered transition metal chalcogenide ceramic compound composed of hafnium and selenium, belonging to the family of van der Waals materials with potentially tunable electronic and mechanical properties. This is primarily a research material currently being investigated for applications leveraging its layered crystal structure and weak interlayer bonding, rather than an established engineering ceramic. The compound shows promise in nanoelectronics, energy storage, and thermal management applications where anisotropic properties and mechanical exfoliation into thin sheets could be advantageous, though commercial adoption remains limited.

2D materials researchThermoelectric devicesNanoelectronics and semiconductorsThermal managementEnergy storage electrodesMechanical metamaterials

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	5,676.8	ksi	DFT · OptB88vdW
Exfoliation Energy(Eexf)	58.53	meV/atom	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2500	-	DFT · OptB88vdW
Shear Modulus(G)	3,757.9	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2609	lb/in³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.3460	eV	DFT · OptB88vdW
↳	0.9880	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)2 entries	19.52	-	DFT · OptB88vdW
↳	13.04	-	DFT · PBE
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	13.40	-	DFT · OptB88vdW
↳	10.00	-	DFT · TBmBJ
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Electron Effective Mass(m*e)	0.00333	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.00333	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00538	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00198	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-65.46	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	61.90	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	31.85	%	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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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000300	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.045	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.

HfSe3

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental