Ag2P2Sr2
Ag2P2Sr2 is a stable, semiconducting ternary phosphide composed of silver, phosphorus, and strontium.
About Ag2P2Sr2
Ag2P2Sr2 is a complex ternary phosphide characterized by its semiconducting electronic nature. As a thermodynamically stable phase residing on the convex hull, it represents a robust crystalline arrangement of silver, phosphorus, and strontium atoms.
This compound is of significant interest to materials scientists studying ternary pnictides. Its structural stability suggests potential for integration into specialized electronic or optoelectronic devices where defined semiconducting properties are required.
Key Properties
Cross-validated computational properties for Ag2P2Sr2, 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 Ag2P2Sr2, 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. |
|---|---|---|---|---|---|
| P63/mmc (No. 194) | hexagonal | 0.11 | 0.0000 | -16.033 | 5.37 |
| P63/mmc (No. 194) | — | — | — | — | — |
| P63/mmc (No. 194) | — | — | — | — | — |
| P63/mmc (No. 194) | — | — | — | — | — |
| P63/mmc (No. 194) | — | — | — | — | — |
| P63/mmc (No. 194) | — | — | — | — | — |
| — | — | — | — | — | 5.20 |
Applications
Where Ag2P2Sr2 is used.
Frequently Asked Questions
Common questions about Ag2P2Sr2, answered from cross-validated data.
What is Ag2P2Sr2?
Ag2P2Sr2 is a stable, semiconducting ternary phosphide composed of silver, phosphorus, and strontium.
What is Ag2P2Sr2 used for?
What is the band gap of Ag2P2Sr2?
Is Ag2P2Sr2 a metal, semiconductor, or insulator?
Is Ag2P2Sr2 thermodynamically stable?
What is the crystal structure of Ag2P2Sr2?
What is the density of Ag2P2Sr2?
How many polymorphs of Ag2P2Sr2 are known?
What elements does Ag2P2Sr2 contain?
Where does the data for Ag2P2Sr2 come from?
How It Compares
As a unique ternary phosphide, Ag2P2Sr2 occupies a distinct position in materials research. Without direct structural analogs in its immediate class, it serves as a primary reference point for understanding the interplay between silver-phosphorus networks and alkaline earth metal coordination.
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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