CeI3

Cerium(III) iodide · Cerium triiodide

Cerium(III) iodide is a stable semiconducting rare-earth halide used in specialized high-performance applications.

CeI
Crystal structure of CeI3
Ground-state structure · Materials Project
Overview

About Cerium(III) iodide

Cerium(III) iodide is a thermodynamically stable inorganic halide that exhibits semiconducting electronic behavior. Its structural integrity and chemical composition make it a significant subject of study within the broader family of rare-earth halides.

Researchers value this compound for its consistent stability and well-defined structural characteristics, which have been documented across multiple databases. It serves as a foundational material for specialized applications requiring precise electronic control and reliable performance.

At a glance

Key Properties

Cross-validated computational properties for Cerium(III) iodide, aggregated across 4 databases.

Band Gap

0.05–0.74 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
3 DFT sources

Structures

17
4 databases, 6 space groups
Uses

Applications

Where Cerium(III) iodide is used.

Scintillation detectorsRadiation detectionCatalysis
Reference

Frequently Asked Questions

Common questions about Cerium(III) iodide, answered from cross-validated data.

What is CeI3?

Cerium(III) iodide is a stable semiconducting rare-earth halide used in specialized high-performance applications.

More questions
What is CeI3 used for?
Cerium(III) iodide (CeI3) is used in scintillation detectors, radiation detection, and catalysis.
What is the band gap of CeI3?
Cerium(III) iodide (CeI3) has a DFT-computed band gap of 0.05–0.74 eV across 17 reported structures.
Is CeI3 a metal, semiconductor, or insulator?
With a band gap up to 0.74 eV it is a semiconductor.
Is CeI3 thermodynamically stable?
Yes — Cerium(III) iodide (CeI3) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of CeI3 are known?
17 structures of CeI3 are reported across 4 databases, spanning 6 distinct space groups.
What elements does CeI3 contain?
Cerium(III) iodide (CeI3) contains Ce and I (2 elements).
Where does the data for CeI3 come from?
CeI3 data is cross-referenced from latticegraph.
Comparison

How It Compares

As a distinct rare-earth halide, this compound represents a stable and well-characterized member of its class, serving as a primary reference point for understanding the structural and electronic trends of cerium-based materials.

Data sources & attribution
  • latticegraph — Lattice Graph Materials Intelligence Platform

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