Nanoimprinted hybrid perovskite metasurfaces

High-index resonant dielectric metasurfaces suggest alternative mechanisms for subwavelength light control and can consist of broad range of dielectric materials with various functionality. Here we demonstrate metasurfaces based on nano imprinted perovskite films optimized by alloying the organic cation part of perovskites. Our results suggest a cost-effective approach based on nanoimprint lithography and combined with simple chemical reactions for creating a new generation of functional metasurfaces which may pave a way towards highly efficient planar optoelectronic meta devices.