AlInN2

Aluminum indium nitride · AlInN

Aluminum indium nitride is a ternary semiconductor alloy composed of aluminum, indium, and nitrogen. It is primarily utilized in optoelectronics and high-frequency electronics due to its tunable electronic properties and structural compatibility with other nitride-based materials.

Crystal structure of AlInN2 (orthorhombic, Pna21 (No. 33))
Ground-state structure · Materials Project
Overview

Key Properties

Cross-validated computational properties for Aluminum indium nitride, aggregated across 3 databases.

Band Gap

1.26–1.63 eV
Range across DFT structures

Energy Above Hull

0.017 eV/atom
Best (lowest) across sources

Stability

Near hull (likely stable)
2 DFT sources

Structures

6
3 databases, 3 space groups
Crystallography

Reported Structures

Lowest-energy structures reported for AlInN2, ranked by energy above hull.

Space GroupCrystal SystemBand Gap (eV)E above hull (eV/atom)E/atom (eV)Density (g/cm³)
Pna21 (No. 33)orthorhombic1.520.0174-12.7735.40
I-42d (No. 122)tetragonal1.630.0357-12.7555.40
Pbca (No. 61)orthorhombic1.260.1540-12.6375.31
5.32
Pna21 (No. 33)
I-42d (No. 122)
Uses

Applications

Where Aluminum indium nitride is used.

Light-emitting diodesLaser diodesHigh-electron-mobility transistorsPhotodetectors
Reference

Frequently Asked Questions

Common questions about Aluminum indium nitride, answered from cross-validated data.

What is AlInN2?

Aluminum indium nitride is a ternary semiconductor alloy composed of aluminum, indium, and nitrogen. It is primarily utilized in optoelectronics and high-frequency electronics due to its tunable electronic properties and structural compatibility with other nitride-based materials.

More questions
What is AlInN2 used for?
Aluminum indium nitride (AlInN2) is used in light-emitting diodes, laser diodes, high-electron-mobility transistors, and photodetectors.
What is the band gap of AlInN2?
Aluminum indium nitride (AlInN2) has a DFT-computed band gap of 1.26–1.63 eV across 6 reported structures.
Is AlInN2 a metal, semiconductor, or insulator?
With a band gap up to 1.63 eV it is a semiconductor.
Is AlInN2 thermodynamically stable?
Aluminum indium nitride (AlInN2) has a lowest energy above hull of 0.017 eV/atom (near hull (likely stable)).
What is the crystal structure of AlInN2?
The lowest-energy reported polymorph of Aluminum indium nitride (AlInN2) is orthorhombic symmetry, space group Pna21 (No. 33).
What is the density of AlInN2?
The computed density of the ground-state structure of Aluminum indium nitride (AlInN2) is 5.40 g/cm³.
How many polymorphs of AlInN2 are known?
6 structures of AlInN2 are reported across 3 databases, spanning 3 distinct space groups.
What elements does AlInN2 contain?
Aluminum indium nitride (AlInN2) contains Al, In, and N (3 elements).
Where does the data for AlInN2 come from?
AlInN2 data is cross-referenced from materials_project, omat24, jarvis.
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Related Compounds

Other Nitride Semiconductors in the database.

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).
  • jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).

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