As4Cd4P4
As4Cd4P4 is a metastable semiconducting material composed of arsenic, cadmium, and phosphorus used in materials science research.
About As4Cd4P4
As4Cd4P4 is a complex quaternary compound composed of arsenic, cadmium, and phosphorus. Its electronic character identifies it as a semiconductor, positioning it as a subject of interest for specialized electronic and optoelectronic material research.
As a metastable phase, this material represents a specific structural arrangement that requires precise synthesis conditions. It is primarily studied within academic and materials science contexts to understand the interplay between its constituent elements and its potential for functional applications.
Key Properties
Cross-validated computational properties for As4Cd4P4, 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 As4Cd4P4, 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. |
|---|---|---|---|---|---|
| I212121 (No. 24) | orthorhombic | 0.42 | 0.0340 | -3.732 | 4.89 |
| — | — | — | — | — | 5.46 |
| — | — | — | — | — | 3.97 |
| Pnma (No. 62) | — | — | — | — | — |
Applications
Where As4Cd4P4 is used.
Frequently Asked Questions
Common questions about As4Cd4P4, answered from cross-validated data.
What is As4Cd4P4?
As4Cd4P4 is a metastable semiconducting material composed of arsenic, cadmium, and phosphorus used in materials science research.
What is As4Cd4P4 used for?
What is the band gap of As4Cd4P4?
Is As4Cd4P4 a metal, semiconductor, or insulator?
Is As4Cd4P4 thermodynamically stable?
What is the crystal structure of As4Cd4P4?
What is the density of As4Cd4P4?
How many polymorphs of As4Cd4P4 are known?
What elements does As4Cd4P4 contain?
Where does the data for As4Cd4P4 come from?
How It Compares
As4Cd4P4 occupies a niche position in materials science as a metastable semiconductor. Without direct structural siblings in its immediate class, it serves as a unique case study for how ternary and quaternary combinations of pnictogens and transition metals can be stabilized to achieve specific electronic behaviors.
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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