BiSe6Tl9
This compound is a complex thallium-bismuth selenide material studied primarily for its unique structural properties in solid-state chemistry. It is typically investigated in research settings to understand the electronic and physical behaviors of ternary chalcogenide systems.

Key Properties
Cross-validated computational properties for BiSe6Tl9, 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.
Reported Structures
Lowest-energy structures reported for BiSe6Tl9, ranked by energy above hull.
| Space GroupSymmetry classification of the crystal arrangement. The number is the international space-group index. | Crystal SystemBroad lattice family, such as cubic, tetragonal, monoclinic, or triclinic, derived from unit-cell symmetry. | Band Gap (eV)Electronic gap calculated for this specific reported structure, measured in electronvolts. | E above hull (eV/atom)Thermodynamic distance from the convex hull for this structure, normalized per atom. Lower is generally more stable. | E/atom (eV)Computed total energy normalized per atom. Use energy above hull, not this value alone, when comparing stability. | Density (g/cm³)Mass per relaxed crystal volume, reported in grams per cubic centimeter. |
|---|---|---|---|---|---|
| I4/m (No. 87) | tetragonal | 0.75 | 0.0000 | -39.394 | 8.74 |
| — | — | — | — | — | 6.78 |
| — | — | — | — | — | — |
Applications
Where BiSe6Tl9 is used.
Frequently Asked Questions
Common questions about BiSe6Tl9, answered from cross-validated data.
What is BiSe6Tl9?
This compound is a complex thallium-bismuth selenide material studied primarily for its unique structural properties in solid-state chemistry. It is typically investigated in research settings to understand the electronic and physical behaviors of ternary chalcogenide systems.
What is BiSe6Tl9 used for?
What is the band gap of BiSe6Tl9?
Is BiSe6Tl9 a metal, semiconductor, or insulator?
Is BiSe6Tl9 thermodynamically stable?
What is the crystal structure of BiSe6Tl9?
What is the density of BiSe6Tl9?
How many polymorphs of BiSe6Tl9 are known?
What elements does BiSe6Tl9 contain?
Where does the data for BiSe6Tl9 come from?
Related Compounds
Other Bismuth Chalcogenide Thermoelectrics in the database.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
- alexandria — Data from alexandria.
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