As20K24Sn12
As20K24Sn12 is a thermodynamically stable semiconducting material investigated for its potential utility in next-generation photovoltaic technologies.
About As20K24Sn12
As20K24Sn12 is a semiconducting material that occupies a significant position within the broader family of halide perovskite-related structures. Its thermodynamic stability, confirmed by its placement on the convex hull, suggests a robust structural integrity that is highly desirable for long-term material performance in solid-state applications. The compound's electronic character makes it an intriguing candidate for advanced energy conversion technologies. By leveraging its unique elemental composition of arsenic, potassium, and tin, researchers are exploring how these complex frameworks can be optimized for efficient light-harvesting and charge-transport processes.
Key Properties
Cross-validated computational properties for As20K24Sn12, 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 As20K24Sn12, 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. |
|---|---|---|---|---|---|
| Pmmn (No. 59) | orthorhombic | 0.70 | 0.0000 | -3.433 | 3.64 |
| — | — | — | — | — | 3.66 |
| Pmmn (No. 59) | — | — | — | — | — |
Applications
Where As20K24Sn12 is used.
Frequently Asked Questions
Common questions about As20K24Sn12, answered from cross-validated data.
What is As20K24Sn12?
As20K24Sn12 is a thermodynamically stable semiconducting material investigated for its potential utility in next-generation photovoltaic technologies.
What is As20K24Sn12 used for?
What is the band gap of As20K24Sn12?
Is As20K24Sn12 a metal, semiconductor, or insulator?
Is As20K24Sn12 thermodynamically stable?
What is the crystal structure of As20K24Sn12?
What is the density of As20K24Sn12?
How many polymorphs of As20K24Sn12 are known?
What elements does As20K24Sn12 contain?
Where does the data for As20K24Sn12 come from?
How It Compares
Within the halide perovskite photovoltaics class.
Unlike the more conventional lead-based halide perovskites such as CsPbBr3 or CsSnI3, As20K24Sn12 represents a more complex, non-traditional structural arrangement within the class. While many members of this group focus on simple cubic or orthorhombic perovskite motifs, this compound demonstrates the diversity of the class by maintaining stability in a distinct, multi-component configuration that diverges from the standard halide-rich stoichiometry seen in materials like Cl12Cs4Sn4.
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).
- 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).
Analyze As20K24Sn12 in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →