Revealing of InP multi-layer stacks from KPFM measurements in the dark and under illumination Mattia da Lisca, James P. Connolly, José Alvarez, Karim Mekhazni, Nicolas Vaissiere, Jean Decobert and Jean-Paul Kleider EPJ Photovolt., 13 (2022) 19 Published online: 23 August 2022 DOI: 10.1051/epjpv/2022017