Bi1Sn1Te2
Bi1Sn1Te2 is a stable semiconducting bismuth chalcogenide used in the study and development of thermoelectric materials.
About Bi1Sn1Te2
Bi1Sn1Te2 is a semiconducting member of the bismuth chalcogenide family of materials. As a thermodynamically stable compound residing on the convex hull, it represents a robust configuration within this class of materials, which are widely investigated for their potential in energy conversion technologies.
Its electronic structure and stability make it a subject of significant interest for solid-state physics and materials engineering. By leveraging the unique transport properties inherent to bismuth-based chalcogenides, researchers utilize this compound to explore efficient heat-to-electricity conversion mechanisms.
Key Properties
Cross-validated computational properties for Bi1Sn1Te2, aggregated across 2 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 Bi1Sn1Te2, 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. |
|---|---|---|---|---|---|
| R-3m (No. 166) | trigonal | 0.43 | 0.0000 | -35.048 | 6.87 |
| Cm (No. 8) | monoclinic | 0.17 | 0.0303 | -35.018 | 6.62 |
| Cmm2 (No. 35) | — | — | — | — | — |
| Pmmm (No. 47) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| Fm-3m (No. 225) | — | — | — | — | — |
| Pmm2 (No. 25) | — | — | — | — | — |
| Imm2 (No. 44) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| P2/m (No. 10) | — | — | — | — | — |
| I-4m2 (No. 119) | — | — | — | — | — |
Applications
Where Bi1Sn1Te2 is used.
Frequently Asked Questions
Common questions about Bi1Sn1Te2, answered from cross-validated data.
What is Bi1Sn1Te2?
Bi1Sn1Te2 is a stable semiconducting bismuth chalcogenide used in the study and development of thermoelectric materials.
What is Bi1Sn1Te2 used for?
What is the band gap of Bi1Sn1Te2?
Is Bi1Sn1Te2 a metal, semiconductor, or insulator?
Is Bi1Sn1Te2 thermodynamically stable?
What is the crystal structure of Bi1Sn1Te2?
What is the density of Bi1Sn1Te2?
How many polymorphs of Bi1Sn1Te2 are known?
What elements does Bi1Sn1Te2 contain?
Where does the data for Bi1Sn1Te2 come from?
How It Compares
Within the bismuth chalcogenide thermoelectrics class.
Within the broader class of bismuth chalcogenide thermoelectrics, Bi1Sn1Te2 occupies a distinct niche compared to the highly studied Bi2Te3. While Bi2Te3 serves as the foundational benchmark for thermoelectric performance in this family, Bi1Sn1Te2 offers a unique structural and chemical composition that diversifies the potential for tuning electronic properties compared to other members like AgSbTe2 or Ge2Sb2Te5.
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).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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