Keywords
classification
defects
effective radii
electronegativity
heterogeneous doping
hybrid perovskites
ion softness
metal doping
tolerance effects
Abstract
A new system of effective radii of metal ions in the bromide environment has been developed to analyze the dopability and preferable lattice positions for 40 different cations in the structure of wide-gap bromide perovskites with a huge potential for applications in optoelectronics, depending on the appropriate doping. The analysis carried out provides theoretical guidance on rational doping from a crystal chemistry point of view and highlights clear differences compared to well-known lead iodide perovskites.
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