CI4

Name: CI4
Brand: MatWorld

semiconductor

· CI4

CI4 is a semiconductor compound belonging to the carbon-iodine or carbon-based halide family, likely representing a research or specialized material rather than a commercial standard grade. The material exhibits mechanical properties consistent with a brittle, dense compound suitable for niche semiconductor or optoelectronic applications. This material would be of interest to researchers and engineers working in advanced semiconductor physics, radiation detection, or wide-bandgap device engineering where unconventional compositions offer specific electrical, optical, or thermal performance advantages over conventional Si or GaAs platforms.

experimental semiconductorsradiation detection devicesresearch-grade optoelectronicswide-bandgap electronicsspecialized photon detectorslaboratory device fabrication

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	1,562.1	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2400	-	DFT · OptB88vdW
Shear Modulus(G)	1,087.8	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1695	lb/in³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)3 entries	2.260	eV	Measured
↳	0.9410	eV	DFT · OptB88vdW
↳	1.618	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	6.597	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	6.053	-	DFT · OptB88vdW
↳	5.090	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.7467	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	2.457	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.08982	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000837	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00115	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-162.9	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	403	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	30.43	%	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)	0.5530	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	0.5524	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

Export Control

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.

CI4 — Properties & Data | MatWorld

CI4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control