Au2Rb2Se2
Au2Rb2Se2 is a thermodynamically stable semiconducting ternary compound composed of gold, rubidium, and selenium.
About Au2Rb2Se2
Au2Rb2Se2 is a thermodynamically stable inorganic compound characterized by its semiconducting electronic nature. As a member of the gold-rubidium-selenium system, it represents a distinct structural arrangement that remains on the convex hull, indicating significant stability under standard conditions.
This material is of interest to researchers exploring complex chalcogenides and their potential for specialized electronic applications. Its stability and semiconducting behavior make it a subject of ongoing study for those investigating the fundamental physics of ternary gold-based semiconductors.
Key Properties
Cross-validated computational properties for Au2Rb2Se2, 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 Au2Rb2Se2, 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. |
|---|---|---|---|---|---|
| Cmcm (No. 63) | orthorhombic | 1.71 | 0.0000 | -3.490 | 6.06 |
| Cmcm (No. 63) | — | — | — | — | — |
| Cmcm (No. 63) | — | — | — | — | — |
| — | — | — | — | — | 6.51 |
| — | — | — | — | — | 6.51 |
Applications
Where Au2Rb2Se2 is used.
Frequently Asked Questions
Common questions about Au2Rb2Se2, answered from cross-validated data.
What is Au2Rb2Se2?
Au2Rb2Se2 is a thermodynamically stable semiconducting ternary compound composed of gold, rubidium, and selenium.
What is Au2Rb2Se2 used for?
What is the band gap of Au2Rb2Se2?
Is Au2Rb2Se2 a metal, semiconductor, or insulator?
Is Au2Rb2Se2 thermodynamically stable?
What is the crystal structure of Au2Rb2Se2?
What is the density of Au2Rb2Se2?
How many polymorphs of Au2Rb2Se2 are known?
What elements does Au2Rb2Se2 contain?
Where does the data for Au2Rb2Se2 come from?
How It Compares
As a unique ternary compound within the gold-rubidium-selenium system, Au2Rb2Se2 stands as a stable configuration that provides a reference point for understanding the bonding and electronic behavior of similar alkali-metal gold chalcogenides.
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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