Ag8Cd2Ge4S14
Ag8Cd2Ge4S14 is a semiconducting quaternary sulfide compound that is theoretically stable enough to be a target for experimental synthesis.
About Ag8Cd2Ge4S14
Ag8Cd2Ge4S14 is a complex quaternary sulfide that exhibits semiconducting electronic behavior. Its composition, involving silver, cadmium, germanium, and sulfur, suggests a sophisticated crystal lattice capable of supporting specialized charge transport properties.
As a near-hull compound, it is considered a prime candidate for experimental synthesis and characterization. Its structural diversity, supported by multiple entries across databases, highlights its significance in the exploration of new chalcogenide materials for potential electronic and optical applications.
Key Properties
Cross-validated computational properties for Ag8Cd2Ge4S14, 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 Ag8Cd2Ge4S14, 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. |
|---|---|---|---|---|---|
| Cc (No. 9) | monoclinic | 0.63 | 0.0030 | -4.142 | 4.62 |
| Cc (No. 9) | — | — | — | — | — |
| — | — | — | — | — | 4.65 |
| — | — | — | — | — | 4.65 |
Applications
Where Ag8Cd2Ge4S14 is used.
Frequently Asked Questions
Common questions about Ag8Cd2Ge4S14, answered from cross-validated data.
What is Ag8Cd2Ge4S14?
Ag8Cd2Ge4S14 is a semiconducting quaternary sulfide compound that is theoretically stable enough to be a target for experimental synthesis.
What is Ag8Cd2Ge4S14 used for?
What is the band gap of Ag8Cd2Ge4S14?
Is Ag8Cd2Ge4S14 a metal, semiconductor, or insulator?
Is Ag8Cd2Ge4S14 thermodynamically stable?
What is the crystal structure of Ag8Cd2Ge4S14?
What is the density of Ag8Cd2Ge4S14?
How many polymorphs of Ag8Cd2Ge4S14 are known?
What elements does Ag8Cd2Ge4S14 contain?
Where does the data for Ag8Cd2Ge4S14 come from?
How It Compares
As a quaternary sulfide, this compound represents a specialized niche in materials science where the precise arrangement of metal cations and sulfur anions dictates its semiconducting performance. Without direct structural siblings in this specific quaternary space, it stands as a distinct example of how complex stoichiometry can be leveraged to tune electronic properties for future technological integration.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
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