TlSe
thallium(I,III) selenide · thallium monoselenide
TlSe is a stable, semiconducting binary compound formed from thallium and selenium.

About thallium(I,III) selenide
TlSe is a distinct semiconducting compound composed of thallium and selenium. It is recognized for its thermodynamic stability, sitting securely on the convex hull, which underscores its robust structural integrity under standard conditions. The material has been extensively characterized across multiple databases, reflecting its significance in fundamental materials research. Its electronic behavior makes it a subject of interest for those studying the intersection of heavy metal chalcogenides and semiconductor physics.
Key Properties
Cross-validated computational properties for thallium(I,III) selenide, 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.
Synthesis Routes
Literature-extracted synthesis procedures targeting TlSe.
Applications
Where thallium(I,III) selenide is used.
Frequently Asked Questions
Common questions about thallium(I,III) selenide, answered from cross-validated data.
What is TlSe?
TlSe is a stable, semiconducting binary compound formed from thallium and selenium.
What is TlSe used for?
What is the band gap of TlSe?
Is TlSe a metal, semiconductor, or insulator?
Is TlSe thermodynamically stable?
How many polymorphs of TlSe are known?
How is TlSe synthesized?
What elements does TlSe contain?
Where does the data for TlSe come from?
How It Compares
As a standalone representative of its specific thallium-selenium stoichiometry, TlSe serves as a critical benchmark for understanding the phase stability and electronic trends within binary thallium chalcogenide systems.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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