Ho2SeO2 — Properties & Data | MatWorld

Ho2SeO2

ceramic

· JVASP-3258· Ho2SeO2

Ho2SeO2 is an inorganic ceramic compound containing holmium, selenium, and oxygen, representing a rare-earth oxyselenide material. This is a research-phase ceramic with limited commercial deployment; it belongs to a family of rare-earth functional ceramics studied for potential applications in high-temperature structural components, electronic devices, and specialized optical or magnetic systems where rare-earth doping provides distinctive properties. Engineers would consider this material primarily in advanced research contexts where holmium's magnetic and luminescent properties, combined with selenium's chemical characteristics, offer advantages over conventional oxides or conventional rare-earth compounds.

research ceramicsrare-earth functional materialshigh-temperature applicationsmagnetic ceramicselectronic materialsexperimental compounds

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	121.3	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2700	-	DFT · OptB88vdW
Shear Modulus(G)	68.23	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	8.571	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	2.318	eV	DFT · OptB88vdW
↳	3.631	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	14.66	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	5.772	-	DFT · OptB88vdW
↳	4.723	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.6767	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.897	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	0.00175	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00228	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-203	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	262.7	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	0.7800	%	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.

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)	-3.333	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.

Ho2SeO2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental