SiH8
SiH8 is a hydrogen-rich, insulating silicon compound that is considered a promising, synthesizable candidate for advanced battery anode technologies.
About SiH8
SiH8 is a hydrogen-rich silicon compound characterized by its wide-band-gap insulating electronic structure. As a member of the silicon hydride family, it represents a high-energy-density configuration that is positioned near the thermodynamic hull, suggesting it is a viable candidate for synthesis and further experimental investigation.
This compound is of significant interest in the development of next-generation silicon anode materials. Its unique structural arrangement and hydrogen content make it a compelling subject for researchers aiming to overcome the volume expansion challenges typically associated with traditional silicon-based battery anodes.
Key Properties
Cross-validated computational properties for SiH8, 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.
Applications
Where SiH8 is used.
Frequently Asked Questions
Common questions about SiH8, answered from cross-validated data.
What is SiH8?
SiH8 is a hydrogen-rich, insulating silicon compound that is considered a promising, synthesizable candidate for advanced battery anode technologies.
What is SiH8 used for?
What is the band gap of SiH8?
Is SiH8 a metal, semiconductor, or insulator?
Is SiH8 thermodynamically stable?
How many polymorphs of SiH8 are known?
What elements does SiH8 contain?
Where does the data for SiH8 come from?
How It Compares
Within the silicon anode materials class.
Unlike metallic or semi-metallic silicon-based compounds such as FeSi, MoSi2, or the elemental Si, SiH8 acts as a wide-gap insulator. While materials like Mg2Si or BaSi2 are well-characterized for their specific semiconducting properties, SiH8 stands out for its high hydrogen density and distinct electronic profile, placing it in a specialized niche within the broader silicon anode material class.
Related Compounds
Other Silicon Anode Materials in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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