Metamaterial Enhancement of Metal-Halide Perovskite Luminescence
Giorgio Adamo, Harish N. S. Krishnamoorthy, Daniele Cortecchia, Bhumika Chaudhary, Venkatram Nalla, Nikolay I. Zheludev, Cesare Soci
Abstract
) thin films based on the Purcell effect. We show that hybridization of the active metal-halide film with resonant nanoscale sized slits carved into a gold film can yield more than 1 order of magnitude enhancement of luminescence intensity and nearly 3-fold reduction of luminescence lifetime corresponding to a Purcell enhancement factor of more than 300. These results show the effectiveness of resonant nanostructures in controlling metal-halide perovskite light emission properties over a tunable spectral range, a viable approach toward highly efficient perovskite light-emitting devices and single-photon emitters.