Polydorou, E. Sakellis, I. Soultati, A. Kaltzoglou, A. Papadopoulos, T.A. Briscoe, J. Tsikritzis, D. Fakis, M. Palilis, L.C. Kennou, S. Argitis, P. Falaras, P. Davazoglou, D. Vasilopoulou, M., Avoiding ambient air and light induced degradation in high-efficiency polymer solar cells by the use of hydrogen-doped zinc oxide as electron extraction material, Nano Energy, (34), 500-514, 2017, ELSEVIER SCIENCE LTD., 2211-2855