Free-standing nanopaper electrode for all-printed super-flexible perovskite solar cells

M.V., A.A., P.A. and D.D. acknowledge support of this work by the project “Development of Materials and Devices for Industrial, Health, Environmental and Cultural Applications” (MIS 5002567) which is implemented under the “Action for the Strategic Development on the Research and Technological Sector”, funded by the Operational Programme "Competitiveness, Entrepreneurship and Innovation" (NSRF 2014-2020) and co-financed by Greece and the European Union (European Regional Development Fund). M.A.M.T, M.F.M.N., and M.F.S. would like to thank Universiti Kebangsaan Malaysia for the financial supports through Research University Grant (GUP-2020-073).