InN
Indium nitride · InN
Indium nitride is a stable III-V semiconductor material widely studied for its potential in high-performance electronic and optical devices.
About Indium nitride
Indium nitride is a prominent member of the III-V semiconductor family, recognized for its stable thermodynamic profile and distinct electronic characteristics. As a material that sits firmly on the convex hull, it serves as a critical component in the ongoing evolution of advanced semiconductor physics.
Its utility is underscored by an extensive body of research, with hundreds of reported structures across major databases. This broad structural knowledge base highlights its importance in the development of next-generation electronic and optoelectronic technologies that require precise band engineering.
Key Properties
Cross-validated computational properties for Indium nitride, aggregated across 5 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 InN. 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 InN, 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. |
|---|---|---|---|---|---|
| P63mc (No. 186) | hexagonal | 0.00 | 0.0000 | -15.971 | 6.84 |
| F-43m (No. 216) | cubic | 0.00 | 0.0133 | -15.958 | 6.82 |
| Fm-3m (No. 225) | cubic | 0.00 | 0.2108 | -15.761 | 8.19 |
| Fm-3m (No. 225) | — | 1.15 | — | — | — |
| P1 (No. 1) | Triclinic | — | — | — | 7.01 |
| F-43m (No. 216) | — | — | — | — | — |
| Pm (No. 6) | Monoclinic | — | — | — | 6.11 |
| Pm (No. 6) | Monoclinic | — | — | — | 7.51 |
| P1 (No. 1) | Triclinic | — | — | — | 5.89 |
| C2/m (No. 12) | Monoclinic | — | — | — | 3.41 |
| Amm2 (No. 38) | Orthorhombic | — | — | — | 7.01 |
| C2/c (No. 15) | Monoclinic | — | — | — | 8.03 |
Applications
Where Indium nitride is used.
Frequently Asked Questions
Common questions about Indium nitride, answered from cross-validated data.
What is InN?
Indium nitride is a stable III-V semiconductor material widely studied for its potential in high-performance electronic and optical devices.
What is InN used for?
What is the band gap of InN?
Is InN a metal, semiconductor, or insulator?
Is InN thermodynamically stable?
What is the crystal structure of InN?
What is the density of InN?
How many polymorphs of InN are known?
What elements does InN contain?
Where does the data for InN come from?
How It Compares
Within the iii-v semiconductors class.
Within the III-V semiconductor class, indium nitride offers a unique electronic profile that complements more traditional materials like gallium nitride. While gallium nitride is widely utilized for its robust performance in power electronics, indium nitride provides distinct advantages in mobility and spectral range, making it a specialized choice for high-frequency applications where other siblings like aluminum phosphide or aluminum antimonide may not be as suitable.
Related Compounds
Other III-V Semiconductors in the database.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- nomad — Data from NOMAD. Cite: Draxl & Scheffler, J. Phys. Mater. 2, 036001 (2019).
- mpaloe — Data from mpaloe.
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
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