Y2GeI2

ceramic

· JVASP-12158· Y2GeI2

Y2GeI2 is a layered ceramic compound combining rare-earth yttrium, germanium, and iodine elements, representing an emerging class of hybrid perovskite-like materials under active research. This is primarily an experimental compound studied for its layered crystal structure and potential optoelectronic properties rather than a material currently in widespread industrial production. The material's interest lies within advanced semiconductors and photonic applications where its layer-dependent behavior and tunable electronic characteristics could offer advantages over conventional ceramics.

photonic crystals (research)layered semiconductors (research)optoelectronic devices (experimental)X-ray scintillators (potential)two-dimensional materials exploration

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	3,782.6	ksi	DFT · OptB88vdW
Exfoliation Energy(Eexf)	52.45	meV/atom	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2200	-	DFT · OptB88vdW
Shear Modulus(G)	2,617.9	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1863	lb/in³	DFT · OptB88vdW

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

Filter by

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.2220	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	41.11	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	17.85	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	0.01333	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.01333	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	0.00360	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000846	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-204.8	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	158.8	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)	-1.320	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.

Y2GeI2 — Properties & Data | MatWorld

Y2GeI2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental