Hg1K2Te1
Hg1K2Te1 is a semiconducting ternary compound containing mercury, potassium, and tellurium that is studied for its diverse structural configurations.
About Hg1K2Te1
Hg1K2Te1 is a ternary semiconducting compound composed of mercury, potassium, and tellurium. Its electronic structure suggests potential utility in specialized optoelectronic applications where specific band characteristics are required for signal processing or sensing technologies. The material is characterized by a complex structural landscape, with numerous reported configurations within crystallographic databases. As a metastable phase situated above the thermodynamic hull, it represents an intriguing subject for synthesis studies focused on kinetic stabilization and phase control.
Key Properties
Cross-validated computational properties for Hg1K2Te1, 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 Hg1K2Te1, 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. |
|---|---|---|---|---|---|
| Immm (No. 71) | orthorhombic | 0.13 | 0.7552 | -21.867 | 0.48 |
| Pmmm (No. 47) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| Pm (No. 6) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| I-4m2 (No. 119) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| Cmmm (No. 65) | — | — | — | — | — |
| P2/m (No. 10) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| Pmm2 (No. 25) | — | — | — | — | — |
Applications
Where Hg1K2Te1 is used.
Frequently Asked Questions
Common questions about Hg1K2Te1, answered from cross-validated data.
What is Hg1K2Te1?
Hg1K2Te1 is a semiconducting ternary compound containing mercury, potassium, and tellurium that is studied for its diverse structural configurations.
What is Hg1K2Te1 used for?
What is the band gap of Hg1K2Te1?
Is Hg1K2Te1 a metal, semiconductor, or insulator?
Is Hg1K2Te1 thermodynamically stable?
What is the crystal structure of Hg1K2Te1?
What is the density of Hg1K2Te1?
How many polymorphs of Hg1K2Te1 are known?
What elements does Hg1K2Te1 contain?
Where does the data for Hg1K2Te1 come from?
How It Compares
As a unique ternary chalcogenide, Hg1K2Te1 serves as a distinct entry point for exploring the interplay between heavy metal cations and alkali metals in semiconducting frameworks. Unlike more common binary tellurides, this compound highlights the structural diversity possible when incorporating highly reactive potassium into a mercury-tellurium lattice, providing a valuable case study for researchers investigating unconventional stoichiometry in complex inorganic 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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