BiHg2K
BiHg2K is a semiconducting ternary compound investigated as a potential, though thermodynamically unstable, candidate for photovoltaic applications.
About BiHg2K
BiHg2K is a complex ternary compound categorized within the broader research framework of halide perovskite photovoltaics. As a semiconducting material, it represents an unconventional exploration into how heavy elements like bismuth and mercury can be integrated into lattice structures to tune electronic properties.
Despite its classification, the compound is identified as being thermodynamically unstable relative to its constituent elements. Its presence in structural databases highlights ongoing efforts to map the chemical space of potential photovoltaic absorbers, even when those materials exist as metastable phases.
Key Properties
Cross-validated computational properties for BiHg2K, 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 BiHg2K is used.
Frequently Asked Questions
Common questions about BiHg2K, answered from cross-validated data.
What is BiHg2K?
BiHg2K is a semiconducting ternary compound investigated as a potential, though thermodynamically unstable, candidate for photovoltaic applications.
What is BiHg2K used for?
What is the band gap of BiHg2K?
Is BiHg2K a metal, semiconductor, or insulator?
Is BiHg2K thermodynamically stable?
How many polymorphs of BiHg2K are known?
What elements does BiHg2K contain?
Where does the data for BiHg2K come from?
How It Compares
Within the halide perovskite photovoltaics class.
Unlike the highly stable and widely utilized CsPbBr3, which serves as a benchmark for high-performance perovskite solar cells, BiHg2K occupies a more speculative position in the class. While siblings like CsSnI3 are actively researched for their optoelectronic potential, BiHg2K remains a theoretical curiosity due to its instability above the hull, distinguishing it from the more robust halide-based frameworks.
Related Compounds
Other Halide Perovskite Photovoltaics in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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