Rb2Te
Rb2Te is a thermodynamically stable semiconducting compound formed from rubidium and tellurium.
About Rb2Te
Rb2Te is a binary compound composed of rubidium and tellurium that exists as a thermodynamically stable phase on the convex hull. Its semiconducting electronic character makes it an intriguing subject for fundamental solid-state physics and materials science investigations.
With a significant number of reported structures across various databases, this material is well-documented in the scientific literature. Its stability and electronic profile suggest potential utility in specialized electronic or optoelectronic applications where specific semiconductor properties are required.
Key Properties
Cross-validated computational properties for Rb2Te, aggregated across 5 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.
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of Rb2Te. Tight agreement means computed properties can be trusted without re-running calculations.
Agreement ScoreA normalized confidence score summarizing how closely independent DFT databases agree. Higher scores mean tighter cross-source agreement.
Hull SpreadDifference between the highest and lowest energy-above-hull values reported by comparable sources. Smaller spread means less thermodynamic disagreement.
Sources ComparedNumber and names of computational sources with comparable entries for this formula.
Space Group ConsensusWhether independent sources predict the same crystal symmetry for the lowest-energy structure.
Reported Structures
Lowest-energy structures reported for Rb2Te, 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. |
|---|---|---|---|---|---|
| — | — | 2.08 | 0.0000 | -1.009 | — |
| Fm-3m (No. 225) | cubic | 1.88 | 0.0000 | -2.839 | 3.16 |
| P63/mmc (No. 194) | hexagonal | 1.45 | 0.0000 | -1.105 | — |
| P63/mmc (No. 194) | hexagonal | 1.45 | 0.0000 | -1.105 | — |
| P63/mmc (No. 194) | hexagonal | 1.45 | 0.0000 | -1.105 | — |
| P63/mmc (No. 194) | hexagonal | 1.45 | 0.0000 | -1.105 | — |
| P63/mmc (No. 194) | hexagonal | 1.45 | 0.0000 | -1.105 | — |
| P63/mmc (No. 194) | hexagonal | 1.45 | 0.0000 | -1.105 | — |
| P63/mmc (No. 194) | hexagonal | 1.45 | 0.0000 | -1.105 | — |
| P63/mmc (No. 194) | hexagonal | 1.45 | 0.0000 | -1.105 | — |
| P63/mmc (No. 194) | hexagonal | 1.45 | 0.0000 | -1.105 | — |
| P63/mmc (No. 194) | hexagonal | 1.45 | 0.0000 | -1.105 | — |
Applications
Where Rb2Te is used.
Frequently Asked Questions
Common questions about Rb2Te, answered from cross-validated data.
What is Rb2Te?
Rb2Te is a thermodynamically stable semiconducting compound formed from rubidium and tellurium.
What is Rb2Te used for?
What is the band gap of Rb2Te?
Is Rb2Te a metal, semiconductor, or insulator?
Is Rb2Te thermodynamically stable?
What is the crystal structure of Rb2Te?
What is the density of Rb2Te?
How many polymorphs of Rb2Te are known?
What elements does Rb2Te contain?
Where does the data for Rb2Te come from?
How It Compares
As a distinct binary chalcogenide, Rb2Te serves as an important reference point for understanding the structural and electronic trends within the broader family of alkali metal tellurides.
Data sources & attribution
- oqmd — Data from the OQMD (oqmd.org). Cite: Saal et al., JOM 65, 1501 (2013); Kirklin et al., npj Comp. Mater. 1, 15010 (2015). (CC-BY-4.0)
- materials_project — Data from the Materials Project (materialsproject.org). Cite: Jain et al., APL Materials 1, 011002 (2013). (CC-BY-4.0)
- jarvis — Data from JARVIS (jarvis.nist.gov), NIST. Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020). (LicenseRef-US-Gov-PD)
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