biostudies-literatureAftenieva ODeutsche ForschungsgemeinschaftVolkswagen Foundation2399-2410https://www.ebi.ac.uk/biostudies/studies/S-EPMC9955732biostudies-literatureUnknown17(3)Perovskite nanocrystals are high-performance, solution-processed materials with a high photoluminescence quantum yield. Due to these exceptional properties, perovskites can serve as building blocks for metasurfaces and are of broad interest for photonic applications. Here, we use a simple grating configuration to direct and amplify the perovskite nanocrystals' original omnidirectional emission. Thus far, controlling these radiation properties was only possible over small areas and at a high expense, including the risks of material degradation. Using a soft lithographic printing process, we can now reliably structure perovskite nanocrystals from the organic solution into light-emitting metasurfaces with high contrast on a large area. We demonstrate the 13-fold amplified directional radiatioACS nanoDirectional Amplified Photoluminescence through Large-Area Perovskite-Based Metasurfaces.PMC995573292 902404818834GRK 2767 / A7Aftenieva OAdnan MSarkar SKonig TAFBrunner JVaynzof YFery AfalseDirectional Amplified Photoluminescence through Large-Area Perovskite-Based Metasurfaces.Perovskite nanocrystals are high-performance, solution-processed materials with a high photoluminescence quantum yield. Due to these exceptional properties, perovskites can serve as building blocks for metasurfaces and are of broad interest for photonic applications. Here, we use a simple grating configuration to direct and amplify the perovskite nanocrystals' original omnidirectional emission. Thus far, controlling these radiation properties was only possible over small areas and at a high expense, including the risks of material degradation. Using a soft lithographic printing process, we can now reliably structure perovskite nanocrystals from the organic solution into light-emitting metasurfaces with high contrast on a large area. We demonstrate the 13-fold amplified directional radiatio2023-01-01T00:00:00Z2023 Feb2025-05-29T19:43:09.454Z2025-05-29T19:43:09.454ZS-EPMC99557323666140910.1021/acsnano.2c09482