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TRANSIENT DECAY OF THE EXCESS MINORITY OF ELECTRONS DENSITY PHOTOGENERATED WITHIN THE ACTIVE LAYER OF A BULK-HETEROJUNCTION ORGANIQUE SOLAR CELL

Transient decay occurs between two steady states through operating points of a Bulk-Heterojunction Organic Solar Cell (BHJ-OSC) based on blend of poly (3-hexylthiophene-2, 5-diyl) (P3HT) as electron-donor and a soluble derivative of fullerene called [6, 6]-phenyl C61-butyric acid methyl ester (PCBM) as electron-acceptor under various monochromatic wavelength ? of irradiation of the spectrum visible is investigated. Basically, since the phenomenological parameters such as the organic photoactive layer thickness, the electron lifetime, the electron diffusion length, and the electron mobility are deemed paramount important for the electron generation and collection at the cathode electrode their dependence effects upon the transient decay of the excess minority of electrons are reported. Likewise, both the influence of the electrons recombination at the interfaces of the electrodes and the bimolecular recombination within the bulk of P3HT:PCBM is also especially paid attention.


Auteur(s) : A. Dioum1,2,*, S. Ndiaye1, M. B. Gaye1, B. Lo1, E. M. Assaid2, and A. C. Beye1
Pages : 2711-2717
Année de publication : 2013
Revue : 28th European Photovoltaic Solar Energy Conference and Exhibition
Type : Article
Mise en ligne par : LO Bassirou