HoTlSe2 — Properties & Data | MatWorld

HoTlSe2

ceramic

· JVASP-79803· HoTlSe2

HoTlSe₂ is a rare-earth ceramic compound combining holmium, thallium, and selenium—an experimental material primarily of research interest rather than established commercial production. This material belongs to the family of chalcogenide semiconductors and potential thermoelectric compounds, explored for applications requiring specific electronic or thermal properties in specialized environments. Interest in this composition reflects research into high-density rare-earth systems where the combination of heavy elements may enable unique electromagnetic, optical, or heat-transport characteristics for niche applications.

thermoelectric researchrare-earth semiconductorsexperimental photonicshigh-density ceramicsmaterials exploration

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	44.49	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2600	-	DFT · OptB88vdW
Shear Modulus(G)	27.73	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	7.624	kg/m³	DFT · OptB88vdW

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

Filter by

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	1.323	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	25.41	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	8.614	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	1.067	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.3167	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	0.00358	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000758	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-338.4	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	95.57	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)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.438	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.

HoTlSe2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental