Er2TeO2

Er2TeO2 is a thermodynamically stable semiconducting compound composed of erbium, tellurium, and oxygen.

ErOTe
Crystal structure of Er2TeO2
Ground-state structure · Materials Project
Overview

About Er2TeO2

Er2TeO2 is a complex oxide-telluride compound that exhibits semiconducting electronic behavior. Its position on the thermodynamic convex hull confirms its inherent stability, making it a robust candidate for materials research and structural analysis.

With multiple reported structures across major databases, this compound is a subject of significant interest for researchers mapping the phase space of rare-earth tellurium oxides. Its unique composition allows for versatile interactions, positioning it as a distinct material within the broader landscape of functional inorganic semiconductors.

At a glance

Key Properties

Cross-validated computational properties for Er2TeO2, aggregated across 3 databases.

Band Gap

0.49–0.60 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
2 DFT sources

Structures

11
3 databases, 3 space groups
Uses

Applications

Where Er2TeO2 is used.

Semiconductor researchSolid-state chemistryMaterials science development
Reference

Frequently Asked Questions

Common questions about Er2TeO2, answered from cross-validated data.

What is Er2TeO2?

Er2TeO2 is a thermodynamically stable semiconducting compound composed of erbium, tellurium, and oxygen.

More questions
What is Er2TeO2 used for?
Er2TeO2 is used in semiconductor research, solid-state chemistry, and materials science development.
What is the band gap of Er2TeO2?
Er2TeO2 has a DFT-computed band gap of 0.49–0.60 eV across 11 reported structures.
Is Er2TeO2 a metal, semiconductor, or insulator?
With a band gap up to 0.60 eV it is a semiconductor.
Is Er2TeO2 thermodynamically stable?
Yes — Er2TeO2 sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of Er2TeO2 are known?
11 structures of Er2TeO2 are reported across 3 databases, spanning 3 distinct space groups.
What elements does Er2TeO2 contain?
Er2TeO2 contains Er, O, and Te (3 elements).
Where does the data for Er2TeO2 come from?
Er2TeO2 data is cross-referenced from latticegraph.
Comparison

How It Compares

As a thermodynamically stable semiconducting phase, Er2TeO2 serves as a foundational example of rare-earth telluride oxides. While it currently stands as a unique entry in this specific structural class, its stability and electronic profile provide a critical benchmark for evaluating the properties of related lanthanide-based chalcogenide systems.

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

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