Rb2PbCl6
Rb2PbCl6 is a thermodynamically stable, semiconducting lead-halide compound used as a model material in photovoltaic and solid-state research.
About Rb2PbCl6
Rb2PbCl6 is a semiconducting halide material that occupies a stable position on the thermodynamic convex hull. As a member of the halide perovskite family, it represents a significant subject of study for researchers aiming to understand the structural diversity and electronic potential of lead-based halide frameworks.
Its inherent stability makes it a compelling candidate for fundamental investigations into solid-state chemistry and optoelectronic behavior. By maintaining a well-defined structural profile across multiple databases, this compound serves as a reliable reference point for modeling the performance and durability of next-generation photovoltaic materials.
Key Properties
Cross-validated computational properties for Rb2PbCl6, 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 Rb2PbCl6, 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. |
|---|---|---|---|---|---|
| Fm-3m (No. 225) | cubic | 1.26 | 0.0000 | -3.569 | 3.62 |
| Fm-3m (No. 225) | — | — | — | — | — |
| Fm-3m (No. 225) | Cubic | — | — | — | 3.49 |
| Fm-3m (No. 225) | Cubic | — | — | — | 3.37 |
| Fm-3m (No. 225) | Cubic | — | — | — | 3.49 |
Applications
Where Rb2PbCl6 is used.
Frequently Asked Questions
Common questions about Rb2PbCl6, answered from cross-validated data.
What is Rb2PbCl6?
Rb2PbCl6 is a thermodynamically stable, semiconducting lead-halide compound used as a model material in photovoltaic and solid-state research.
What is Rb2PbCl6 used for?
What is the band gap of Rb2PbCl6?
Is Rb2PbCl6 a metal, semiconductor, or insulator?
Is Rb2PbCl6 thermodynamically stable?
What is the crystal structure of Rb2PbCl6?
What is the density of Rb2PbCl6?
How many polymorphs of Rb2PbCl6 are known?
What elements does Rb2PbCl6 contain?
Where does the data for Rb2PbCl6 come from?
How It Compares
Within the halide perovskite photovoltaics class.
Within the broader class of halide perovskites and related halides, Rb2PbCl6 is distinguished by its thermodynamic robustness compared to more volatile or moisture-sensitive siblings like CsSnI3. While compounds such as CsPbBr3 are frequently optimized for high-efficiency solar conversion, Rb2PbCl6 provides a structurally stable alternative that allows researchers to probe the limits of lead-halide lattice configurations without the instability often associated with more complex perovskite variants.
Related Compounds
Other Halide Perovskite Photovoltaics in the database.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- mpaloe — Data from mpaloe.
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