Se2TlY
Se2TlY is a thermodynamically stable semiconducting ternary compound containing selenium, thallium, and yttrium.
About Se2TlY
Se2TlY is a distinct ternary compound composed of selenium, thallium, and yttrium. It is characterized as a semiconducting material that occupies a stable position on the convex hull, indicating significant thermodynamic robustness under standard conditions. The material is notable for its structural diversity, with multiple reported configurations across crystallographic databases. This complexity makes it a subject of interest for researchers investigating the interplay between heavy metal cations and chalcogenide frameworks in solid-state chemistry.
Key Properties
Cross-validated computational properties for Se2TlY, 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 Se2TlY is used.
Frequently Asked Questions
Common questions about Se2TlY, answered from cross-validated data.
What is Se2TlY?
Se2TlY is a thermodynamically stable semiconducting ternary compound containing selenium, thallium, and yttrium.
What is Se2TlY used for?
What is the band gap of Se2TlY?
Is Se2TlY a metal, semiconductor, or insulator?
Is Se2TlY thermodynamically stable?
How many polymorphs of Se2TlY are known?
What elements does Se2TlY contain?
Where does the data for Se2TlY come from?
How It Compares
As a unique ternary chalcogenide, Se2TlY serves as a foundational example of how combining rare-earth elements like yttrium with heavy post-transition metals can yield stable, semiconducting electronic environments in the absence of more common structural archetypes.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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