Nb4O8
Nb4O8 has a DFT band gap of 0.04–0.43 eV across 53 reported structures in 21 space groups. Cross-validated across 4 computational databases.
At a glance
Key Properties
Cross-validated computational properties for Nb4O8, aggregated across 4 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.
0.04–0.43 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.
0.000 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.
On hull (stable)
2 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
53
4 databases, 21 space groups
Reference
Frequently Asked Questions
Common questions about Nb4O8, answered from cross-validated data.
What is the band gap of Nb4O8?
Nb4O8 has a DFT-computed band gap of 0.04–0.43 eV across 53 reported structures.
More questions
Is Nb4O8 a metal, semiconductor, or insulator?
With a band gap up to 0.43 eV it is a semiconductor.
Is Nb4O8 thermodynamically stable?
Yes — Nb4O8 sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of Nb4O8 are known?
53 structures of Nb4O8 are reported across 4 databases, spanning 21 distinct space groups.
What elements does Nb4O8 contain?
Nb4O8 contains Nb and O (2 elements).
Where does the data for Nb4O8 come from?
Nb4O8 data is cross-referenced from latticegraph.
Explore
Related Compounds
Other Electrochromic and Refractory-Metal Oxides in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
Analyze Nb4O8 in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →