Al1Se2Sr1
Al1Se2Sr1 is a stable, semiconducting ternary compound containing aluminum, selenium, and strontium.
About Al1Se2Sr1
Al1Se2Sr1 is a distinct ternary compound composed of aluminum, selenium, and strontium. As a thermodynamically stable material situated on the convex hull, it represents a robust phase within its compositional space, indicating favorable formation characteristics under standard conditions.
Exhibiting semiconducting electronic behavior, this material is of interest for fundamental studies in solid-state physics and materials science. Its unique combination of elements suggests potential for specialized electronic or optoelectronic applications where specific band characteristics are required.
Key Properties
Cross-validated computational properties for Al1Se2Sr1, aggregated across 2 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 Al1Se2Sr1, 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. |
|---|---|---|---|---|---|
| Cccm (No. 66) | orthorhombic | 2.98 | 0.0000 | -13.739 | 4.18 |
| P4/mmm (No. 123) | — | — | — | — | — |
| Pmmm (No. 47) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| R-3m (No. 166) | — | — | — | — | — |
| Pmmm (No. 47) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| Cm (No. 8) | — | — | — | — | — |
| P4mm (No. 99) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
| P4/mmm (No. 123) | — | — | — | — | — |
Applications
Where Al1Se2Sr1 is used.
Frequently Asked Questions
Common questions about Al1Se2Sr1, answered from cross-validated data.
What is Al1Se2Sr1?
Al1Se2Sr1 is a stable, semiconducting ternary compound containing aluminum, selenium, and strontium.
What is Al1Se2Sr1 used for?
What is the band gap of Al1Se2Sr1?
Is Al1Se2Sr1 a metal, semiconductor, or insulator?
Is Al1Se2Sr1 thermodynamically stable?
What is the crystal structure of Al1Se2Sr1?
What is the density of Al1Se2Sr1?
How many polymorphs of Al1Se2Sr1 are known?
What elements does Al1Se2Sr1 contain?
Where does the data for Al1Se2Sr1 come from?
How It Compares
As a standalone ternary phase in this study, Al1Se2Sr1 serves as a foundational example of stable aluminum-based selenide chemistry, providing a benchmark for future investigations into similar complex chalcogenide systems.
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).
Analyze Al1Se2Sr1 in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →