Author/Authors :
Paci، نويسنده , , B. and Generosi، نويسنده , , A. and Rossi Albertini، نويسنده , , V. and Perfetti، نويسنده , , P. and de Bettignies، نويسنده , , R. and Sentein، نويسنده , , C.، نويسنده ,
Abstract :
The stability and degradation of calcium/aluminium cathode organic solar cells are investigated in situ by time-resolved energy dispersive X-ray reflectometry. They combine the good charge carrier separation and transport properties of the poly(3-hexylthiophene-2,5-diyl):C61-butyric acid methyl ester (P3HT:PCBM) bulk heterojunction blend and the capability of the calcium/aluminium cathode to improve the fill factor and the open circuit voltage, with respect to aluminium cathodes cells. The study focuses on the crucial problem of the device structural/morphological stability in working condition. It aims to detect and control possible morphological variations at the various interfaces and to correlate these changes to the device aging.
