K1Te2Y1
K1Te2Y1 is a stable, semiconducting ternary compound containing potassium, tellurium, and yttrium.
About K1Te2Y1
K1Te2Y1 is a complex ternary compound composed of potassium, tellurium, and yttrium. As a thermodynamically stable phase residing on the convex hull, it represents a robust crystalline structure that maintains its integrity under standard conditions.
This material exhibits semiconducting electronic properties, making it a candidate for specialized electronic applications. Its unique composition allows for structural diversity, as evidenced by the multiple reported configurations in crystallographic databases.
Key Properties
Cross-validated computational properties for K1Te2Y1, 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 K1Te2Y1, 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 | 1.30 | 0.0000 | -5.084 | 4.45 |
| Fm-3m (No. 225) | — | — | — | — | — |
| Fm-3m (No. 225) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| Immm (No. 71) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| R-3m (No. 166) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| R-3m (No. 166) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| R-3m (No. 166) | — | — | — | — | — |
| Imm2 (No. 44) | — | — | — | — | — |
Applications
Where K1Te2Y1 is used.
Frequently Asked Questions
Common questions about K1Te2Y1, answered from cross-validated data.
What is K1Te2Y1?
K1Te2Y1 is a stable, semiconducting ternary compound containing potassium, tellurium, and yttrium.
What is K1Te2Y1 used for?
What is the band gap of K1Te2Y1?
Is K1Te2Y1 a metal, semiconductor, or insulator?
Is K1Te2Y1 thermodynamically stable?
What is the crystal structure of K1Te2Y1?
What is the density of K1Te2Y1?
How many polymorphs of K1Te2Y1 are known?
What elements does K1Te2Y1 contain?
Where does the data for K1Te2Y1 come from?
How It Compares
As a distinct ternary phase, K1Te2Y1 occupies a unique position in materials science where its stability and semiconducting nature provide a foundation for exploring new electronic behaviors in complex chalcogenide-like systems.
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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