Rh2S3
Rh2S3 is a thermodynamically stable semiconducting compound composed of rhodium and sulfur.
About Rh2S3
Rhodium sesquisulfide is a thermodynamically stable binary compound that sits firmly on the convex hull of its phase space. Its semiconducting electronic character makes it an intriguing subject for research into transition metal chalcogenides, particularly where stable, well-defined stoichiometry is required for electronic or catalytic applications.
With a significant number of reported structures across various databases, this material is well-documented in the literature. Its stability and predictable electronic behavior provide a reliable foundation for exploring its utility in specialized chemical and materials science applications.
Key Properties
Cross-validated computational properties for Rh2S3, 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 Rh2S3, 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. |
|---|---|---|---|---|---|
| R-3c (No. 167) | trigonal | 0.42 | 0.0000 | -15.087 | 6.14 |
| Pbcn (No. 60) | orthorhombic | 0.19 | 0.0012 | -15.085 | 6.37 |
| R-3m (No. 166) | Trigonal | — | — | — | 7.49 |
| Cm (No. 8) | Monoclinic | — | — | — | 6.80 |
| Cm (No. 8) | Monoclinic | — | — | — | 7.80 |
| P-1 (No. 2) | Triclinic | — | — | — | 5.64 |
| R-3c (No. 167) | — | — | — | — | — |
| Pbcn (No. 60) | — | — | — | — | — |
| P3m1 (No. 156) | Trigonal | — | — | — | 6.14 |
| P3m1 (No. 156) | Trigonal | — | — | — | 5.34 |
| Cm (No. 8) | Monoclinic | — | — | — | 5.08 |
| Cm (No. 8) | Monoclinic | — | — | — | 4.53 |
Applications
Where Rh2S3 is used.
Frequently Asked Questions
Common questions about Rh2S3, answered from cross-validated data.
What is Rh2S3?
Rh2S3 is a thermodynamically stable semiconducting compound composed of rhodium and sulfur.
What is Rh2S3 used for?
What is the band gap of Rh2S3?
Is Rh2S3 a metal, semiconductor, or insulator?
Is Rh2S3 thermodynamically stable?
What is the crystal structure of Rh2S3?
What is the density of Rh2S3?
How many polymorphs of Rh2S3 are known?
What elements does Rh2S3 contain?
Where does the data for Rh2S3 come from?
How It Compares
As a stable binary sulfide, Rh2S3 serves as a foundational example of rhodium-based chalcogenides. While it does not share the same extensive commercial history as some more common transition metal sulfides, its position on the convex hull ensures it remains a robust candidate for fundamental studies in semiconductor physics.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
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