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

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.
Key Properties
Cross-validated computational properties for Er2TeO2, aggregated across 3 databases.
Band GapEnergy needed to move an electron from the valence band to the conduction band. Lower or zero values tend to behave more metallic; larger gaps are more insulating or semiconducting.
Energy Above HullThermodynamic distance from the most stable set of competing phases. 0 eV/atom is on the convex hull; small positive values may still be experimentally accessible.
StabilityA plain-language summary of the best reported energy-above-hull result. It reflects whether the lowest-energy structure is on, near, or far from the stability hull.
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
Applications
Where Er2TeO2 is used.
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.
What is Er2TeO2 used for?
What is the band gap of Er2TeO2?
Is Er2TeO2 a metal, semiconductor, or insulator?
Is Er2TeO2 thermodynamically stable?
How many polymorphs of Er2TeO2 are known?
What elements does Er2TeO2 contain?
Where does the data for Er2TeO2 come from?
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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