Cu4I4Te8
Cu4I4Te8 is a thermodynamically stable, semiconducting inorganic compound consisting of copper, iodine, and tellurium.
About Cu4I4Te8
Cu4I4Te8 is a complex inorganic compound composed of copper, iodine, and tellurium. As a thermodynamically stable material located on the convex hull, it represents a robust configuration of these elements that maintains structural integrity under standard conditions.
This material exhibits semiconducting electronic character, making it a subject of interest for researchers investigating electronic and optoelectronic properties. Its existence across multiple structural databases highlights its significance in the study of ternary copper-based chalcogenide-halide systems.
Key Properties
Cross-validated computational properties for Cu4I4Te8, 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 Cu4I4Te8, 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. |
|---|---|---|---|---|---|
| P21/c (No. 14) | monoclinic | 0.83 | 0.0000 | -3.404 | 5.58 |
| — | — | — | — | — | 4.60 |
| P21/c (No. 14) | — | — | — | — | — |
Applications
Where Cu4I4Te8 is used.
Frequently Asked Questions
Common questions about Cu4I4Te8, answered from cross-validated data.
What is Cu4I4Te8?
Cu4I4Te8 is a thermodynamically stable, semiconducting inorganic compound consisting of copper, iodine, and tellurium.
What is Cu4I4Te8 used for?
What is the band gap of Cu4I4Te8?
Is Cu4I4Te8 a metal, semiconductor, or insulator?
Is Cu4I4Te8 thermodynamically stable?
What is the crystal structure of Cu4I4Te8?
What is the density of Cu4I4Te8?
How many polymorphs of Cu4I4Te8 are known?
What elements does Cu4I4Te8 contain?
Where does the data for Cu4I4Te8 come from?
How It Compares
As a unique ternary compound, Cu4I4Te8 serves as a distinct entry point for exploring the interplay between copper, iodine, and tellurium, standing as a stable representative of its specific elemental combination within the broader field of semiconducting inorganic materials.
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).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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