Ge8K8O40P8
Ge8K8O40P8 is a wide-band-gap insulating inorganic compound that is considered thermodynamically stable and potentially synthesizable.
About Ge8K8O40P8
Ge8K8O40P8 is an insulating complex oxide containing germanium, potassium, oxygen, and phosphorus. As a wide-band-gap material, it exhibits electronic properties characteristic of stable, non-conductive inorganic frameworks.
Its near-hull thermodynamic stability suggests that it is a viable candidate for experimental synthesis. This compound is of interest to researchers exploring the structural diversity of complex phosphate-germanate systems.
Key Properties
Cross-validated computational properties for Ge8K8O40P8, 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 Ge8K8O40P8, 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. |
|---|---|---|---|---|---|
| Pna21 (No. 33) | orthorhombic | 3.33 | 0.0213 | -6.955 | 3.54 |
| Pna21 (No. 33) | — | — | — | — | — |
| — | — | — | — | — | 3.03 |
Frequently Asked Questions
Common questions about Ge8K8O40P8, answered from cross-validated data.
What is Ge8K8O40P8?
Ge8K8O40P8 is a wide-band-gap insulating inorganic compound that is considered thermodynamically stable and potentially synthesizable.
What is the band gap of Ge8K8O40P8?
Is Ge8K8O40P8 a metal, semiconductor, or insulator?
Is Ge8K8O40P8 thermodynamically stable?
What is the crystal structure of Ge8K8O40P8?
What is the density of Ge8K8O40P8?
How many polymorphs of Ge8K8O40P8 are known?
What elements does Ge8K8O40P8 contain?
Where does the data for Ge8K8O40P8 come from?
How It Compares
As a specialized inorganic compound, Ge8K8O40P8 occupies a distinct niche in materials chemistry. While it lacks direct structural analogs in this specific grouping, its stability profile positions it as a significant subject for further investigation into the fundamental properties of complex oxide lattices.
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).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
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