Y2Se3

Y2Se3 is a stable, semiconducting yttrium selenide compound characterized by a diverse range of known structural configurations.

SeY
Crystal structure of Y2Se3
Ground-state structure · Materials Project
Overview

About Y2Se3

Y2Se3 is a thermodynamically stable compound composed of yttrium and selenium. As a semiconductor, it occupies a significant position in the study of rare-earth chalcogenides, benefiting from a robust structural framework that sits on the convex hull of stability.

With numerous reported structures, this material is a subject of interest for researchers investigating the electronic and optical properties of metal-selenide systems. Its stable nature makes it a reliable candidate for exploring complex phase behavior in solid-state chemistry.

At a glance

Key Properties

Cross-validated computational properties for Y2Se3, aggregated across 2 databases.

Band Gap

1.32–1.60 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
1 DFT source

Structures

29
2 databases, 12 space groups
Uses

Applications

Where Y2Se3 is used.

semiconductor researchsolid-state chemistry studiesmaterials science exploration
Reference

Frequently Asked Questions

Common questions about Y2Se3, answered from cross-validated data.

What is Y2Se3?

Y2Se3 is a stable, semiconducting yttrium selenide compound characterized by a diverse range of known structural configurations.

More questions
What is Y2Se3 used for?
Y2Se3 is used in semiconductor research, solid-state chemistry studies, and materials science exploration.
What is the band gap of Y2Se3?
Y2Se3 has a DFT-computed band gap of 1.32–1.60 eV across 29 reported structures.
Is Y2Se3 a metal, semiconductor, or insulator?
With a band gap up to 1.60 eV it is a semiconductor.
Is Y2Se3 thermodynamically stable?
Yes — Y2Se3 sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of Y2Se3 are known?
29 structures of Y2Se3 are reported across 2 databases, spanning 12 distinct space groups.
What elements does Y2Se3 contain?
Y2Se3 contains Se and Y (2 elements).
Where does the data for Y2Se3 come from?
Y2Se3 data is cross-referenced from latticegraph.
Comparison

How It Compares

As a stable binary chalcogenide, Y2Se3 serves as a foundational example of yttrium-based semiconductors, providing a baseline for understanding the structural diversity and electronic behavior inherent in rare-earth selenide systems.

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

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