Ag2Hf2Rb2Te6
Ag2Hf2Rb2Te6 is a stable, semiconducting quaternary compound studied for its potential utility in photovoltaic and optoelectronic technologies.
About Ag2Hf2Rb2Te6
Ag2Hf2Rb2Te6 is a complex quaternary chalcogenide that functions as a semiconductor. Its position on the convex hull indicates it is a thermodynamically stable phase, making it a subject of interest for structural and electronic characterization within the broader perovskite-related material family.
This compound is primarily investigated for its potential role in photovoltaic and optoelectronic applications. By leveraging its semiconducting properties, researchers aim to explore how its specific atomic arrangement influences charge transport and light absorption in advanced energy conversion devices.
Key Properties
Cross-validated computational properties for Ag2Hf2Rb2Te6, 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 Ag2Hf2Rb2Te6, 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. |
|---|---|---|---|---|---|
| P21/m (No. 11) | monoclinic | 0.32 | 0.0000 | -4.849 | 6.23 |
| — | — | — | — | — | 6.25 |
| P21/m (No. 11) | — | — | — | — | — |
Applications
Where Ag2Hf2Rb2Te6 is used.
Frequently Asked Questions
Common questions about Ag2Hf2Rb2Te6, answered from cross-validated data.
What is Ag2Hf2Rb2Te6?
Ag2Hf2Rb2Te6 is a stable, semiconducting quaternary compound studied for its potential utility in photovoltaic and optoelectronic technologies.
What is Ag2Hf2Rb2Te6 used for?
What is the band gap of Ag2Hf2Rb2Te6?
Is Ag2Hf2Rb2Te6 a metal, semiconductor, or insulator?
Is Ag2Hf2Rb2Te6 thermodynamically stable?
What is the crystal structure of Ag2Hf2Rb2Te6?
What is the density of Ag2Hf2Rb2Te6?
How many polymorphs of Ag2Hf2Rb2Te6 are known?
What elements does Ag2Hf2Rb2Te6 contain?
Where does the data for Ag2Hf2Rb2Te6 come from?
How It Compares
Within the halide perovskite photovoltaics class.
Within the diverse landscape of halide perovskite-related materials, Ag2Hf2Rb2Te6 stands out as a stable, complex alternative to more traditional lead-based systems like CsPbBr3 or CsSnI3. While many members of this class are studied for their high-efficiency optoelectronic performance, this compound offers a unique structural framework that distinguishes it from simpler halide structures like RbPbF3.
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).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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