AsP
Arsenic monophosphide is a binary semiconductor material composed of arsenic and phosphorus. It is primarily studied for its potential utility in advanced electronic and optoelectronic device architectures.
AsP
Overview
Key Properties
Cross-validated computational properties for AsP, 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.
0.46 eV
Range across DFT structures
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.
0.059 eV/atom
Best (lowest) across sources
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.
Metastable
2 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
103
3 databases, 25 space groups
Crystallography
Reported Structures
Lowest-energy structures reported for AsP, 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. |
|---|---|---|---|---|---|
| C2/m (No. 12) | monoclinic | 0.46 | 0.0591 | -11.796 | 3.81 |
| R3m (No. 160) | trigonal | 0.00 | 0.0831 | -11.772 | 4.49 |
| C2/m (No. 12) | Monoclinic | — | — | — | 4.29 |
| C2/c (No. 15) | Monoclinic | — | — | — | 2.73 |
| C2/m (No. 12) | Monoclinic | — | — | — | 4.11 |
| C2/m (No. 12) | Monoclinic | — | — | — | 4.10 |
| C2/m (No. 12) | Monoclinic | — | — | — | 6.41 |
| Cm (No. 8) | Monoclinic | — | — | — | 3.39 |
| P1 (No. 1) | Triclinic | — | — | — | 3.25 |
| P1 (No. 1) | Triclinic | — | — | — | 5.77 |
| P1 (No. 1) | Triclinic | — | — | — | 4.01 |
| P1 (No. 1) | Triclinic | — | — | — | 7.48 |
Uses
Applications
Where AsP is used.
Semiconductor researchOptoelectronic device developmentMaterials science studies
Reference
Frequently Asked Questions
Common questions about AsP, answered from cross-validated data.
What is AsP?
Arsenic monophosphide is a binary semiconductor material composed of arsenic and phosphorus. It is primarily studied for its potential utility in advanced electronic and optoelectronic device architectures.
More questions
What is AsP used for?
AsP is used in semiconductor research, optoelectronic device development, and materials science studies.
What is the band gap of AsP?
AsP has a DFT-computed band gap of 0.46 eV across 103 reported structures.
Is AsP a metal, semiconductor, or insulator?
With a band gap up to 0.46 eV it is a semiconductor.
Is AsP thermodynamically stable?
AsP has a lowest energy above hull of 0.059 eV/atom (metastable).
What is the crystal structure of AsP?
The lowest-energy reported polymorph of AsP is monoclinic symmetry, space group C2/m (No. 12).
What is the density of AsP?
The computed density of the ground-state structure of AsP is 3.81 g/cm³.
How many polymorphs of AsP are known?
103 structures of AsP are reported across 3 databases, spanning 25 distinct space groups.
What elements does AsP contain?
AsP contains As and P (2 elements).
Where does the data for AsP come from?
AsP data is cross-referenced from materials_project, mpaloe.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
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