Cd2Cu4S8Si2
Cd2Cu4S8Si2 is a stable, semiconducting quaternary sulfide material composed of cadmium, copper, sulfur, and silicon.
About Cd2Cu4S8Si2
Cd2Cu4S8Si2 is a complex quaternary sulfide compound that exhibits semiconducting electronic behavior. As a thermodynamically stable phase located on the convex hull, it represents a robust structural arrangement of cadmium, copper, sulfur, and silicon atoms.
This material is of interest to researchers investigating novel chalcogenide semiconductors. Its stable nature makes it a compelling candidate for fundamental studies into how multi-element coordination influences electronic transport and optical properties in solid-state systems.
Key Properties
Cross-validated computational properties for Cd2Cu4S8Si2, 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 Cd2Cu4S8Si2, 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. |
|---|---|---|---|---|---|
| Pmn21 (No. 31) | orthorhombic | 0.98 | 0.0000 | -4.647 | 4.20 |
| Pmn21 (No. 31) | — | — | — | — | — |
| Pmn21 (No. 31) | — | — | — | — | — |
| Pmn21 (No. 31) | — | — | — | — | — |
| — | — | — | — | — | 3.62 |
Applications
Where Cd2Cu4S8Si2 is used.
Frequently Asked Questions
Common questions about Cd2Cu4S8Si2, answered from cross-validated data.
What is Cd2Cu4S8Si2?
Cd2Cu4S8Si2 is a stable, semiconducting quaternary sulfide material composed of cadmium, copper, sulfur, and silicon.
What is Cd2Cu4S8Si2 used for?
What is the band gap of Cd2Cu4S8Si2?
Is Cd2Cu4S8Si2 a metal, semiconductor, or insulator?
Is Cd2Cu4S8Si2 thermodynamically stable?
What is the crystal structure of Cd2Cu4S8Si2?
What is the density of Cd2Cu4S8Si2?
How many polymorphs of Cd2Cu4S8Si2 are known?
What elements does Cd2Cu4S8Si2 contain?
Where does the data for Cd2Cu4S8Si2 come from?
How It Compares
As a unique quaternary sulfide, Cd2Cu4S8Si2 occupies a distinct position in materials science research. While many related chalcogenides are explored for their optoelectronic potential, this specific composition serves as a stable benchmark for understanding the structural diversity possible within complex sulfur-based semiconductor systems.
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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