Khelifi, S.S.KhelifiDecock, K.K.DecockLauwaert, J.J.LauwaertVrielinck, H.H.VrielinckSpoltore, D.D.SpoltorePiersimoni, F.F.PiersimoniManca, JeanJeanMancaBelghachi, A.A.BelghachiBurgelman, M.M.Burgelman2021-10-192021-10-1920110021-8979https://imec-publications.be/handle/20.500.12860/19171Investigation of defects by admittance spectroscopy measurements in poly(3-hexylthiophene):(6,6)-phenyl C61-butyric acid methyl ester organic solar cells degraded under air exposureJournal article