Ultra-lightweight and flexible inverted metamorphic four junction solar cells for space applications Malte Klitzke, Jonas Schön, Rosalinda H. Van Leest, Gunther M.M.W. Bissels, Elias Vlieg, Michael Schachtner, Frank Dimroth and David Lackner EPJ Photovolt., 13 (2022) 25 Published online: 18 November 2022 DOI: 10.1051/epjpv/2022024