TmI2 — Properties & Data | MatWorld

TmI2

ceramic

· JVASP-18540· TmI2

Thulium iodide (TmI₂) is an inorganic ceramic compound composed of the rare-earth element thulium and iodine, belonging to the rare-earth halide family. This material is primarily of research and emerging technology interest rather than established industrial production, with potential applications in optoelectronics, phosphors, and solid-state laser systems where rare-earth ions provide distinctive luminescent and spectroscopic properties. Engineers and materials scientists evaluate TmI₂ for niche photonic applications where its rare-earth character offers wavelength selectivity and quantum efficiency advantages unavailable in conventional ceramics, though scalability and cost relative to established alternatives remain considerations for commercialization.

rare-earth optoelectronicsresearch phosphor materialssolid-state laser systemsinfrared emittersphotonic devicesspecialty ceramics

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	22.19	GPa	DFT · OptB88vdW
Exfoliation Energy(Eexf)	90.77	meV/atom	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2900	-	DFT · OptB88vdW
Shear Modulus(G)	11.93	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	6.755	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	0.000	eV	DFT · OptB88vdW
↳	3.094	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	6.859	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	5.701	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000891	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000926	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-34.20	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-35.41	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	3.530	%	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)	-1.184	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.

TmI2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental