Water-Repellent Low-Dimensional Fluorous Perovskite as Interfacial Coating for 20% Efficient Solar Cells Cho, Kyung Taek ; Zhang, Yi ; Orlandi, Simonetta ; Cavazzini, Marco ; Zimmermann, Iwan ; Lesch, Andreas ; Tabet, Nouar ; Pozzi, Gianluca ; Grancini, Giulia ; Nazeeruddin, Mohammad Khaja Abstract Publication: Nano Letters Pub Date: September 2018 DOI: 10.1021/acs.nanolett.8b01863 Bibcode: 2018NanoL..18.5467C