In2HgTe4
This compound is a quaternary semiconductor material belonging to the chalcogenide family. It is primarily studied for its potential utility in optoelectronic devices and infrared detection technologies.
Overview
Key Properties
Cross-validated computational properties for In2HgTe4, 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.
0.53 eV
Range across DFT structures
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.
0.000 eV/atom
Best (lowest) across sources
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.
On hull (stable)
2 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
6
3 databases, 2 space groups
Crystallography
Reported Structures
Lowest-energy structures reported for In2HgTe4, 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. |
|---|---|---|---|---|---|
| I-4 (No. 82) | tetragonal | 0.53 | 0.0000 | -28.433 | 6.15 |
| I-4m2 (No. 119) | tetragonal | 0.00 | 0.2126 | -28.220 | 6.86 |
| I-4 (No. 82) | — | — | — | — | — |
| I-4 (No. 82) | Tetragonal | — | — | — | 5.97 |
| I-4 (No. 82) | Tetragonal | — | — | — | 6.16 |
| I-4 (No. 82) | Tetragonal | — | — | — | 6.23 |
Uses
Applications
Where In2HgTe4 is used.
Infrared sensingOptoelectronic device researchSemiconductor material studies
Reference
Frequently Asked Questions
Common questions about In2HgTe4, answered from cross-validated data.
What is In2HgTe4?
This compound is a quaternary semiconductor material belonging to the chalcogenide family. It is primarily studied for its potential utility in optoelectronic devices and infrared detection technologies.
More questions
What is In2HgTe4 used for?
In2HgTe4 is used in infrared sensing, optoelectronic device research, and semiconductor material studies.
What is the band gap of In2HgTe4?
In2HgTe4 has a DFT-computed band gap of 0.53 eV across 6 reported structures.
Is In2HgTe4 a metal, semiconductor, or insulator?
With a band gap up to 0.53 eV it is a semiconductor.
Is In2HgTe4 thermodynamically stable?
Yes — In2HgTe4 sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
What is the crystal structure of In2HgTe4?
The lowest-energy reported polymorph of In2HgTe4 is tetragonal symmetry, space group I-4 (No. 82).
What is the density of In2HgTe4?
The computed density of the ground-state structure of In2HgTe4 is 6.15 g/cm³.
How many polymorphs of In2HgTe4 are known?
6 structures of In2HgTe4 are reported across 3 databases, spanning 2 distinct space groups.
What elements does In2HgTe4 contain?
In2HgTe4 contains Hg, In, and Te (3 elements).
Where does the data for In2HgTe4 come from?
In2HgTe4 data is cross-referenced from materials_project, jarvis, mpaloe.
Explore
Related Compounds
Other Phase-Change Memory Materials in the database.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- mpaloe — Data from mpaloe.
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