Cu3Ge5K2O14
Cu3Ge5K2O14 is a metastable, semiconducting quaternary oxide containing copper, germanium, potassium, and oxygen.
About Cu3Ge5K2O14
Cu3Ge5K2O14 is a complex oxide composed of copper, germanium, potassium, and oxygen. As a semiconducting material, it exhibits electronic properties that make it a subject of interest for fundamental studies in solid-state chemistry and materials design.
Because it exists in a metastable state, this compound represents a unique synthetic challenge. Its existence across multiple structural databases highlights its role as a specialized phase within the broader landscape of quaternary oxide systems.
Key Properties
Cross-validated computational properties for Cu3Ge5K2O14, 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 Cu3Ge5K2O14, 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. |
|---|---|---|---|---|---|
| P-1 (No. 2) | triclinic | 0.32 | 0.0394 | -6.285 | 4.17 |
| — | — | — | — | — | 3.27 |
| P-1 (No. 2) | — | — | — | — | — |
Applications
Where Cu3Ge5K2O14 is used.
Frequently Asked Questions
Common questions about Cu3Ge5K2O14, answered from cross-validated data.
What is Cu3Ge5K2O14?
Cu3Ge5K2O14 is a metastable, semiconducting quaternary oxide containing copper, germanium, potassium, and oxygen.
What is Cu3Ge5K2O14 used for?
What is the band gap of Cu3Ge5K2O14?
Is Cu3Ge5K2O14 a metal, semiconductor, or insulator?
Is Cu3Ge5K2O14 thermodynamically stable?
What is the crystal structure of Cu3Ge5K2O14?
What is the density of Cu3Ge5K2O14?
How many polymorphs of Cu3Ge5K2O14 are known?
What elements does Cu3Ge5K2O14 contain?
Where does the data for Cu3Ge5K2O14 come from?
How It Compares
As a unique quaternary oxide, Cu3Ge5K2O14 serves as a distinct example of how copper and germanium can integrate into a potassium-rich lattice. Without a broad family of direct structural siblings, it stands as an individual case study in how metastable semiconducting phases can be stabilized and characterized for potential electronic applications.
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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