LaI3

Lanthanum triiodide · Lanthanum(III) iodide

Lanthanum triiodide is a stable semiconducting lanthanide halide used primarily in specialized optical and detection technologies.

ILa
Crystal structure of LaI3
Ground-state structure · Materials Project
Overview

About Lanthanum triiodide

Lanthanum triiodide is a thermodynamically stable inorganic halide that functions as a semiconductor. Its structural integrity and electronic properties make it a subject of significant interest within materials science research, supported by a diverse range of documented structural configurations.

This compound plays a vital role in specialized technological fields where its specific electronic character can be leveraged. As a stable member of the lanthanide halide family, it serves as a foundational material for high-performance optical components and radiation detection systems.

At a glance

Key Properties

Cross-validated computational properties for Lanthanum triiodide, aggregated across 3 databases.

Band Gap

2.07 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
2 DFT sources

Structures

10
3 databases, 5 space groups
Uses

Applications

Where Lanthanum triiodide is used.

Scintillation detectorsOptical materialsCatalysis research
Reference

Frequently Asked Questions

Common questions about Lanthanum triiodide, answered from cross-validated data.

What is LaI3?

Lanthanum triiodide is a stable semiconducting lanthanide halide used primarily in specialized optical and detection technologies.

More questions
What is LaI3 used for?
Lanthanum triiodide (LaI3) is used in scintillation detectors, optical materials, and catalysis research.
What is the band gap of LaI3?
Lanthanum triiodide (LaI3) has a DFT-computed band gap of 2.07 eV across 10 reported structures.
Is LaI3 a metal, semiconductor, or insulator?
With a band gap up to 2.07 eV it is a semiconductor.
Is LaI3 thermodynamically stable?
Yes — Lanthanum triiodide (LaI3) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of LaI3 are known?
10 structures of LaI3 are reported across 3 databases, spanning 5 distinct space groups.
What elements does LaI3 contain?
Lanthanum triiodide (LaI3) contains I and La (2 elements).
Where does the data for LaI3 come from?
LaI3 data is cross-referenced from latticegraph.
Comparison

How It Compares

As a stable lanthanide halide, Lanthanum triiodide represents a key reference point for understanding the structural and electronic behavior of heavy-metal triiodides. It serves as a primary example of how lanthanum-based compounds maintain stability while providing the semiconducting characteristics necessary for advanced material design.

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

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