Si2I

ceramic

· JVASP-135174· Si2I

Si₂I is an inorganic ceramic compound composed of silicon and iodine, representing an exploratory material in the family of halide semiconductors and ceramic composites. While not widely established in commercial production, silicon-iodine compounds are of research interest for optoelectronic applications, radiation detection, and solid-state physics studies where unique electronic and thermal properties of halide ceramics offer potential advantages over conventional materials. Engineers would consider this material primarily in advanced research contexts, particularly where the combination of silicon's structural robustness with iodine's electronic characteristics could enable novel device geometries or improved performance in specialized sensing or photonic applications.

experimental semiconductorsradiation detection researchoptoelectronic device developmenthalide ceramic compositessolid-state physics researchadvanced material prototyping

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	6,615.2	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3300	-	DFT · OptB88vdW
Shear Modulus(G)	4,068.3	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1329	lb/in³	DFT · OptB88vdW

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

Filter by

Method

Property	Unit	Conditions
Band Gap(Eg)2 entries	eV	DFT · OptB88vdW
↳	eV	DFT · TBmBJ
Magnetic Moment(μB)	µB	DFT · OptB88vdW

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)	0.3111	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	0.1680	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.

Si2I — Properties & Data | MatWorld

Si2I

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental