Ge4K8Te16
Ge4K8Te16 is a stable, semiconducting material belonging to the perovskite class that is being investigated for its potential utility in photovoltaic energy conversion.
About Ge4K8Te16
Ge4K8Te16 is a semiconducting compound that occupies a stable position on the convex hull, indicating favorable thermodynamic characteristics for material synthesis. Its unique arrangement of germanium, potassium, and tellurium atoms positions it as a specialized candidate within the broader family of perovskite-related materials.
As a member of the halide perovskite class, this material is of significant interest for its potential role in next-generation photovoltaic technologies. Its electronic properties are tailored by its specific structural configuration, making it a subject of study for researchers aiming to optimize light-harvesting efficiency and structural durability.
Key Properties
Cross-validated computational properties for Ge4K8Te16, 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 Ge4K8Te16, 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 | 1.07 | 0.0000 | -3.564 | 4.09 |
| P21/c (No. 14) | — | — | — | — | — |
| — | — | — | — | — | 3.96 |
Applications
Where Ge4K8Te16 is used.
Frequently Asked Questions
Common questions about Ge4K8Te16, answered from cross-validated data.
What is Ge4K8Te16?
Ge4K8Te16 is a stable, semiconducting material belonging to the perovskite class that is being investigated for its potential utility in photovoltaic energy conversion.
What is Ge4K8Te16 used for?
What is the band gap of Ge4K8Te16?
Is Ge4K8Te16 a metal, semiconductor, or insulator?
Is Ge4K8Te16 thermodynamically stable?
What is the crystal structure of Ge4K8Te16?
What is the density of Ge4K8Te16?
How many polymorphs of Ge4K8Te16 are known?
What elements does Ge4K8Te16 contain?
Where does the data for Ge4K8Te16 come from?
How It Compares
Within the halide perovskite photovoltaics class.
Unlike the more widely characterized lead-based perovskites such as CsPbBr3 or the tin-based CsSnI3, Ge4K8Te16 offers a distinct chemical composition that deviates from the conventional halide-rich frameworks. While its siblings often focus on optimizing toxicity or stability through lead-free alternatives, this compound represents a specialized structural variant that expands the chemical space available for exploring semiconducting behavior in complex perovskite architectures.
Related Compounds
Other Halide Perovskite Photovoltaics in the database.
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).
Analyze Ge4K8Te16 in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →