Effects of Residual Oxygen in the Degradation of the Performance of Organic Bulk Heterojunction Solar Cells: Stability, Role of the Encapsulation - Advances in Materials Physics and Chemistry

AMPC > Vol.8 No.9, September 2018

Advances in Materials Physics and Chemistry

Volume 8, Issue 9 (September 2018)

ISSN Print: 2162-531X ISSN Online: 2162-5328

Google-based Impact Factor: 0.65 Citations h5-index & Ranking

Effects of Residual Oxygen in the Degradation of the Performance of Organic Bulk Heterojunction Solar Cells: Stability, Role of the Encapsulation ()

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Download as PDF (Size: 1353KB) PP. 321-339

DOI: 10.4236/ampc.2018.89022 914 Downloads 2,403 Views Citations

Author(s)

Vianou Irénée Madogni^1,2*, Macaire Agbomahéna^3,4, Basile Bruno Kounouhéwa^1,2,5, Olivier Douhéret³, Roberto Lazzaroni³

Affiliation(s)

¹Département de Physique (FAST), Formation Doctorale Sciences des Matériaux (FDSM), Université d’Abomey, Calavi, Bénin.
²Laboratoire de Physique du Rayonnement LPR, FAST-UAC, Cotonou, Bénin.
³Laboratory for Chemistry of Novel Materials, Materia Nova R&D Center, University of Mons (UMONS), Mons, Belgium.
⁴Laboratoire de Caractérisation Thermophysique des Matériaux et Appropriation Energétique (Labo CTMAE/EPAC/UAC), Cotonou, Benin.
⁵Centre Béninois de la Recherche Scientifique et Technique (CBRST), Cotonou, Bénin.

ABSTRACT

We have shown in our first articles [1] [2] that even after encapsulation, the first rapid phase of degradation mechanism observed has been attributed to oxidation of interfaces and an alteration of the charges collection process. A second phase slower is induced by the oxidation of the active film, namely a decrease in the absorption and a degradation of the charge transport process. We revealed that another decrease in power conversion efficiency which has been induced by a possible interfacial passivation occurred at the organic/cathode interface, owing to the presence of residual oxygen, moisture and other impurities. This is in reality the real cause of the first rapid phase of degradation mechanism observed.

KEYWORDS

Encapsulation, Alteration, Oxidation, Residual Oxygen, Moisture, Impurities

Share and Cite:

Madogni, V. , Agbomahéna, M. , Kounouhéwa, B. , Douhéret, O. and Lazzaroni, R. (2018) Effects of Residual Oxygen in the Degradation of the Performance of Organic Bulk Heterojunction Solar Cells: Stability, Role of the Encapsulation. Advances in Materials Physics and Chemistry, 8, 321-339. doi: 10.4236/ampc.2018.89022.

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