SeI2 — Properties & Data | MatWorld

SeI2

ceramic

· JVASP-33798· SeI2

Selenium iodide (SeI₂) is an inorganic ceramic compound combining selenium and iodine, belonging to the halide ceramic family. This material is primarily studied in research contexts for solid-state ionics and photovoltaic applications, where its mixed-halide composition offers potential advantages in ion transport and light absorption compared to single-halide alternatives. SeI₂ represents an experimental platform for exploring tunable bandgaps and ionic conductivity in next-generation energy conversion and storage devices.

experimental photovoltaicssolid-state electrolyteshalide ceramic researchadvanced battery materialsoptoelectronic device developmention-conducting membranes

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	13.01	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3800	-	DFT · OptB88vdW
Shear Modulus(G)	6.610	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	4.440	kg/m³	DFT · OptB88vdW

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Filter by

Method

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.3960	eV	DFT · OptB88vdW
↳	1.062	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	15.78	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	14.03	-	DFT · OptB88vdW
↳	9.910	-	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)	32.35	%	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)	0.1129	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	0.1129	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.

SeI2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental