PBr
PBr is a semiconducting phosphorus bromide compound that exists as a thermodynamically unstable phase.
About PBr
PBr is a binary phosphorus-bromine compound characterized by its semiconducting electronic nature. Due to its position above the thermodynamic hull, it is considered an unstable phase that generally requires specific conditions to exist or be observed in a laboratory setting.
Despite its instability, the material has garnered significant interest in computational materials science, as evidenced by the large number of reported structural configurations across various databases. It serves as a key subject for studying the complex phase space of phosphorus-halide systems.
Key Properties
Cross-validated computational properties for PBr, 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 PBr is used.
Frequently Asked Questions
Common questions about PBr, answered from cross-validated data.
What is PBr?
PBr is a semiconducting phosphorus bromide compound that exists as a thermodynamically unstable phase.
What is PBr used for?
What is the band gap of PBr?
Is PBr a metal, semiconductor, or insulator?
Is PBr thermodynamically stable?
How many polymorphs of PBr are known?
What elements does PBr contain?
Where does the data for PBr come from?
How It Compares
As a unique binary phosphorus-bromine phase, PBr represents a distinct structural arrangement within its chemical family, serving as a primary reference point for understanding the limitations of stability in similar halogenated phosphorus compounds.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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