ErI3

ErI3 is a stable, semiconducting erbium iodide compound frequently studied for its structural properties.

ErI
Crystal structure of ErI3
Ground-state structure · Materials Project
Overview

About ErI3

ErI3 is a thermodynamically stable inorganic compound consisting of erbium and iodine. As a semiconducting material, it occupies a distinct niche in halide chemistry, characterized by its presence on the convex hull, which indicates high stability under standard conditions.

Its structural versatility is highlighted by a significant number of reported configurations across various materials databases. This extensive documentation makes it a subject of interest for researchers investigating the fundamental properties of rare-earth halides and their potential utility in specialized electronic or optical applications.

At a glance

Key Properties

Cross-validated computational properties for ErI3, aggregated across 4 databases.

Band Gap

2.04 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
3 DFT sources

Structures

10
4 databases, 4 space groups
Uses

Applications

Where ErI3 is used.

Halide researchRare-earth material studiesSolid-state chemistry applications
Reference

Frequently Asked Questions

Common questions about ErI3, answered from cross-validated data.

What is ErI3?

ErI3 is a stable, semiconducting erbium iodide compound frequently studied for its structural properties.

More questions
What is ErI3 used for?
ErI3 is used in halide research, rare-earth material studies, and solid-state chemistry applications.
What is the band gap of ErI3?
ErI3 has a DFT-computed band gap of 2.04 eV across 10 reported structures.
Is ErI3 a metal, semiconductor, or insulator?
With a band gap up to 2.04 eV it is a semiconductor.
Is ErI3 thermodynamically stable?
Yes — ErI3 sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of ErI3 are known?
10 structures of ErI3 are reported across 4 databases, spanning 4 distinct space groups.
What elements does ErI3 contain?
ErI3 contains Er and I (2 elements).
Where does the data for ErI3 come from?
ErI3 data is cross-referenced from latticegraph.
Comparison

How It Compares

As a standalone entry in this context, ErI3 represents a stable and well-characterized example of a rare-earth triiodide, serving as a primary reference point for understanding the structural and electronic behavior of this specific halide group.

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

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