GaTeI7 — Properties & Data | MatWorld

GaTeI7

ceramic

· JVASP-5683· GaTeI7

GaTeI₇ is a layered ceramic compound composed of gallium, tellurium, and iodine that belongs to the family of mixed-halide chalcogenides. This is a research-phase material being investigated for its potential in semiconductor and optoelectronic applications, where its layered structure offers opportunities for controlled exfoliation and device engineering. The compound is of interest to researchers exploring novel photodetectors, thin-film electronics, and van der Waals heterostructures, where the ability to produce atomically thin layers could enable new device architectures not achievable with conventional semiconductors.

experimental semiconductor researchlayered material exfoliationphotodetector developmentthin-film optoelectronicsvan der Waals heterostructures

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	9.920	GPa	DFT · OptB88vdW
Exfoliation Energy(Eexf)	94.04	meV/atom	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3500	-	DFT · OptB88vdW
Shear Modulus(G)	4.210	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	4.473	kg/m³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	1.556	eV	DFT · OptB88vdW
↳	2.297	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	13.51	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	7.444	-	DFT · OptB88vdW
↳	5.779	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.07466	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000818	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000531	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-302.2	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	274.3	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	16.63	%	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.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.2524	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.

GaTeI7

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental