Ag2K4Se8V2
Ag2K4Se8V2 is a thermodynamically stable, semiconducting quaternary compound utilized in materials science research for its unique structural properties.
About Ag2K4Se8V2
Ag2K4Se8V2 is a complex quaternary chalcogenide that functions as a semiconducting material. Its position on the thermodynamic convex hull highlights its inherent stability, making it a subject of interest for researchers investigating structural diversity in advanced electronic materials.
This compound is part of a broader class of materials often explored for potential applications in optoelectronics and photovoltaics. Its structural integrity and electronic properties suggest it may serve as a robust candidate for specialized semiconductor device architectures.
Key Properties
Cross-validated computational properties for Ag2K4Se8V2, 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 Ag2K4Se8V2, 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. |
|---|---|---|---|---|---|
| Fddd (No. 70) | orthorhombic | 0.98 | 0.0000 | -4.606 | 3.79 |
| P1 (No. 1) | triclinic | 1.00 | 0.0080 | -4.598 | 3.79 |
| Fddd (No. 70) | — | — | — | — | — |
| — | — | — | — | — | 3.77 |
| — | — | — | — | — | 3.20 |
Applications
Where Ag2K4Se8V2 is used.
Frequently Asked Questions
Common questions about Ag2K4Se8V2, answered from cross-validated data.
What is Ag2K4Se8V2?
Ag2K4Se8V2 is a thermodynamically stable, semiconducting quaternary compound utilized in materials science research for its unique structural properties.
What is Ag2K4Se8V2 used for?
What is the band gap of Ag2K4Se8V2?
Is Ag2K4Se8V2 a metal, semiconductor, or insulator?
Is Ag2K4Se8V2 thermodynamically stable?
What is the crystal structure of Ag2K4Se8V2?
What is the density of Ag2K4Se8V2?
How many polymorphs of Ag2K4Se8V2 are known?
What elements does Ag2K4Se8V2 contain?
Where does the data for Ag2K4Se8V2 come from?
How It Compares
Within the halide perovskite photovoltaics class.
Unlike the more conventional halide perovskites like CsPbBr3 or CsSnI3, which are frequently studied for their high-efficiency photovoltaic performance, Ag2K4Se8V2 represents a more exotic structural variant within the broader family. While many siblings rely on lead or tin halides, this compound utilizes a distinct chalcogenide framework, offering a different pathway for tuning electronic behavior compared to standard perovskite-like structures.
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).
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