KSnN
KSnN is a metastable semiconducting nitride perovskite material investigated for its potential applications in advanced photovoltaic technologies.
About KSnN
KSnN is a semiconducting nitride compound that belongs to the broader family of perovskite-structured materials. As a metastable phase, it represents an intriguing target for researchers looking to expand the structural and electronic diversity of photovoltaic absorbers beyond traditional halide compositions.
Its significance lies in its potential to offer alternative optoelectronic properties that differ from more conventional perovskite systems. By leveraging its specific electronic character, this material serves as a platform for investigating how non-halide frameworks might contribute to the development of stable and efficient solar energy conversion devices.
Key Properties
Cross-validated computational properties for KSnN, 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 KSnN, 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 | 1.03 | 0.0717 | -4.621 | 4.49 |
| Cm (No. 8) | monoclinic | 0.00 | 0.2481 | -4.445 | 3.29 |
| P63mc (No. 186) | — | — | — | — | — |
| P63mc (No. 186) | Hexagonal | — | — | — | 4.49 |
| P63mc (No. 186) | Hexagonal | — | — | — | 4.61 |
| P63mc (No. 186) | Hexagonal | — | — | — | 4.66 |
Applications
Where KSnN is used.
Frequently Asked Questions
Common questions about KSnN, answered from cross-validated data.
What is KSnN?
KSnN is a metastable semiconducting nitride perovskite material investigated for its potential applications in advanced photovoltaic technologies.
What is KSnN used for?
What is the band gap of KSnN?
Is KSnN a metal, semiconductor, or insulator?
Is KSnN thermodynamically stable?
What is the crystal structure of KSnN?
What is the density of KSnN?
How many polymorphs of KSnN are known?
What elements does KSnN contain?
Where does the data for KSnN come from?
How It Compares
Within the halide perovskite photovoltaics class.
Within the diverse landscape of perovskite-related materials, KSnN stands out as a distinct nitride-based variant compared to the heavily researched halide perovskites like CsSnI3 or CsPbBr3. While those halide counterparts are widely recognized for their high performance in solar cells, KSnN represents a more exploratory class of materials that challenges the standard compositional paradigms of the field.
Related Compounds
Other Halide Perovskite Photovoltaics in the database.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- mpaloe — Data from mpaloe.
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