Er2TeO2

ceramic

· JVASP-49816· Er2TeO2

Er2TeO2 is an erbium tellurite ceramic compound that combines rare-earth erbium with tellurium oxide, forming a dense crystalline oxide material. This compound is primarily investigated in research contexts for photonic and optical applications, particularly in infrared transmission windows and as a potential host material for rare-earth dopants in fiber amplifiers and laser systems. Its tellurite base makes it notable within the broader family of tellurite glasses and ceramics, which are valued for broad infrared transparency and favorable rare-earth ion incorporation compared to traditional silicate alternatives.

optical fibers and amplifiersinfrared opticsrare-earth-doped photonic devicesresearch and developmenttellurite ceramic matriceslaser host materials

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	15,790.3	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2600	-	DFT · OptB88vdW
Shear Modulus(G)	9,285.3	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.3216	lb/in³	DFT · OptB88vdW

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

Filter by

Method

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.6660	eV	DFT · OptB88vdW
↳	1.835	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	16.73	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	6.886	-	DFT · OptB88vdW
↳	5.753	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	26.59	%	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)	-3.095	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.

Er2TeO2 — Properties & Data | MatWorld

Er2TeO2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental