ReS2
rhenium disulfide · rhenium(IV) sulfide
ReS2 is a stable, semiconducting transition-metal dichalcogenide known for its unique structural anisotropy and potential in high-performance electronic applications.
About rhenium disulfide
Rhenium disulfide is a semiconducting transition-metal dichalcogenide that occupies a stable position on the thermodynamic convex hull. Its distinct structural arrangement, characterized by rhenium-rhenium bonding, differentiates it from more common layered dichalcogenides and provides a unique platform for studying low-dimensional physics.
Due to its robust stability and favorable electronic properties, this material is a subject of intense research for next-generation optoelectronic and sensing devices. Its ability to maintain structural integrity while offering tunable electronic responses makes it a versatile candidate for advanced material engineering.
Key Properties
Cross-validated computational properties for rhenium disulfide, 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 ReS2. 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 ReS2, 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. |
|---|---|---|---|---|---|
| — | — | 1.38 | 0.0000 | -0.749 | — |
| P-1 (No. 2) | triclinic | 1.32 | 0.0000 | -7.810 | 7.11 |
| P-1 (No. 2) | triclinic | 1.21 | 0.0000 | -0.630 | — |
| — | — | 1.36 | 0.0009 | -0.748 | — |
| — | — | 0.00 | 0.0946 | -0.654 | — |
| — | — | 0.00 | 0.1719 | -0.577 | — |
| — | — | 0.00 | 0.2710 | -0.478 | — |
| — | — | 0.00 | 0.2834 | -0.465 | — |
| — | — | 0.00 | 0.3001 | -0.449 | — |
| — | — | 0.00 | 0.3054 | -0.443 | — |
| — | — | 0.00 | 0.3074 | -0.441 | — |
| — | — | 0.00 | 0.3101 | -0.439 | — |
Applications
Where rhenium disulfide is used.
Frequently Asked Questions
Common questions about rhenium disulfide, answered from cross-validated data.
What is ReS2?
ReS2 is a stable, semiconducting transition-metal dichalcogenide known for its unique structural anisotropy and potential in high-performance electronic applications.
What is ReS2 used for?
What is the band gap of ReS2?
Is ReS2 a metal, semiconductor, or insulator?
Is ReS2 thermodynamically stable?
What is the crystal structure of ReS2?
What is the density of ReS2?
How many polymorphs of ReS2 are known?
What elements does ReS2 contain?
Where does the data for ReS2 come from?
How It Compares
Within the transition-metal dichalcogenides class.
Unlike the more widely characterized hexagonal MoS2 or MoSe2, ReS2 exhibits a distorted triclinic structure that leads to significant in-plane anisotropy. This structural deviation from its siblings allows for direction-dependent optical and electronic behaviors, positioning it as a specialized alternative to the highly symmetric members of the transition-metal dichalcogenide family.
Related Compounds
Other Transition-Metal Dichalcogenides in the database.
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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