Er2S3

erbium(III) sulfide · erbium sesquisulfide

Erbium(III) sulfide is a thermodynamically stable semiconducting compound formed from erbium and sulfur.

ErS
Crystal structure of Er2S3
Ground-state structure · Materials Project
Overview

About erbium(III) sulfide

Erbium(III) sulfide is a stable binary compound composed of erbium and sulfur. As a semiconducting material, it represents a significant focus for researchers investigating rare-earth chalcogenides and their electronic behaviors.

Its position on the convex hull confirms its thermodynamic stability, making it a reliable subject for structural analysis. With multiple reported crystal structures, it serves as a key reference point for understanding the coordination chemistry of heavy lanthanide sulfides.

At a glance

Key Properties

Cross-validated computational properties for erbium(III) sulfide, aggregated across 3 databases.

Band Gap

0.63–1.97 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, 4 space groups
Synthesis

Synthesis Routes

Literature-extracted synthesis procedures targeting Er2S3.

Solid State
Procedure available · ceder_solid_state
Uses

Applications

Where erbium(III) sulfide is used.

semiconductor researchmaterials science studiesrare-earth chalcogenide development
Reference

Frequently Asked Questions

Common questions about erbium(III) sulfide, answered from cross-validated data.

What is Er2S3?

Erbium(III) sulfide is a thermodynamically stable semiconducting compound formed from erbium and sulfur.

More questions
What is Er2S3 used for?
erbium(III) sulfide (Er2S3) is used in semiconductor research, materials science studies, and rare-earth chalcogenide development.
What is the band gap of Er2S3?
erbium(III) sulfide (Er2S3) has a DFT-computed band gap of 0.63–1.97 eV across 10 reported structures.
Is Er2S3 a metal, semiconductor, or insulator?
With a band gap up to 1.97 eV it is a semiconductor.
Is Er2S3 thermodynamically stable?
Yes — erbium(III) sulfide (Er2S3) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of Er2S3 are known?
10 structures of Er2S3 are reported across 3 databases, spanning 4 distinct space groups.
How is Er2S3 synthesized?
Literature-reported routes for Er2S3 include solid state.
What elements does Er2S3 contain?
erbium(III) sulfide (Er2S3) contains Er and S (2 elements).
Where does the data for Er2S3 come from?
Er2S3 data is cross-referenced from latticegraph.
Comparison

How It Compares

As a stable binary sulfide, Er2S3 serves as a foundational example of the rare-earth chalcogenide class, providing essential data for characterizing the electronic and structural trends observed in heavy lanthanide-based semiconductors.

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

Analyze Er2S3 in the Lattice Graph platform

Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.

Explore the Platform →