InGaP2
InGaP2 is a metastable semiconducting compound containing indium, gallium, and phosphorus used in advanced materials research.
About InGaP2
InGaP2 is a semiconducting compound consisting of indium, gallium, and phosphorus. As a metastable phase, it represents a complex arrangement of these elements that requires precise synthesis conditions to achieve, making it a subject of significant interest in materials science research.
This material is primarily investigated for its electronic properties, which are characteristic of ternary phosphide semiconductors. Its structural diversity, evidenced by multiple reported configurations, highlights its role as a versatile candidate for advanced semiconductor engineering and future device architectures.
Key Properties
Cross-validated computational properties for InGaP2, 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.
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of InGaP2. Tight agreement means computed properties can be trusted without re-running calculations.
Agreement ScoreA normalized confidence score summarizing how closely independent DFT databases agree. Higher scores mean tighter cross-source agreement.
Hull SpreadDifference between the highest and lowest energy-above-hull values reported by comparable sources. Smaller spread means less thermodynamic disagreement.
Sources ComparedNumber and names of computational sources with comparable entries for this formula.
Space Group ConsensusWhether independent sources predict the same crystal symmetry for the lowest-energy structure.
Reported Structures
Lowest-energy structures reported for InGaP2, 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. |
|---|---|---|---|---|---|
| — | — | 1.07 | 0.0261 | -0.417 | — |
| R3m (No. 160) | trigonal | 0.42 | 0.0361 | -0.292 | — |
| R3m (No. 160) | trigonal | 0.56 | 0.0390 | -13.401 | 4.33 |
| P21/m (No. 11) | monoclinic | — | — | — | 3.72 |
| C2/m (No. 12) | monoclinic | — | — | — | 5.03 |
| C2/m (No. 12) | monoclinic | — | — | — | 4.19 |
| C2/m (No. 12) | monoclinic | — | — | — | 5.72 |
| C2/m (No. 12) | monoclinic | — | — | — | 4.79 |
| C2/m (No. 12) | monoclinic | — | — | — | 4.20 |
Applications
Where InGaP2 is used.
Frequently Asked Questions
Common questions about InGaP2, answered from cross-validated data.
What is InGaP2?
InGaP2 is a metastable semiconducting compound containing indium, gallium, and phosphorus used in advanced materials research.
What is InGaP2 used for?
What is the band gap of InGaP2?
Is InGaP2 a metal, semiconductor, or insulator?
Is InGaP2 thermodynamically stable?
What is the crystal structure of InGaP2?
How many polymorphs of InGaP2 are known?
What elements does InGaP2 contain?
Where does the data for InGaP2 come from?
How It Compares
As a ternary phosphide, InGaP2 serves as an important representative of complex semiconductor systems. While it exists as a metastable phase, its study contributes to the broader understanding of how indium and gallium interact within a phosphorus lattice to tune electronic behavior in specialized technological applications.
Data sources & attribution
- oqmd — Data from the OQMD (oqmd.org). Cite: Saal et al., JOM 65, 1501 (2013); Kirklin et al., npj Comp. Mater. 1, 15010 (2015). (CC-BY-4.0)
- jarvis — Data from JARVIS (jarvis.nist.gov), NIST. Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020). (LicenseRef-US-Gov-PD)
- materials_project — Data from the Materials Project (materialsproject.org). Cite: Jain et al., APL Materials 1, 011002 (2013). (CC-BY-4.0)
- mpaloe — Data from MP-ALOE. Cite: Kuner et al., npj Comput. Mater. (2025), doi:10.1038/s41524-025-01834-9.
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