  Meta-optics based on optically-resonant dielectric nanostructures is a
rapidly developing research field with many potential applications. Halide
perovskite metasurfaces emerged recently as a novel platform for meta-optics,
and they offer unique opportunities for control of light in optoelectronic
devices. Here we employ the generalized Kerker conditions to overlap electric
and magnetic Mie resonances in each meta-atom of MAPbBr3 perovskite metasurface
and demonstrate broadband suppression of reflection down to 4%. We reveal also
that metasurface nanostructuring is also beneficial for the enhancement of
photoluminescence. Our results may be useful for applications of nanostructured
halide perovskites in photovoltaics and semi-transparent multifunctional
metadevices where reflection reduction is important for their high efficiency.
