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Ouari, E. A. Z. K., El Jouad, Z., Benchouk, K., Kouskoussa, B., Cattin, L., Makha, M., Khelil, A., Morsli, M., Addou, M. & Bernede, J. C. (2014) Effect of MoO3 in the cathode buffer layer on the behaviour of layered organic solar cells. Indian J. Pure Appl. Phys. 52 829–838. 
Added by: Laurent Cournède (2016-03-10 21:01:54)
Type de référence: Article
Numéro d'identification (ISBN etc.): 0019-5596
Clé BibTeX: Ouari2014
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Catégories: CESES
Mots-clés: Ageing, Anode, barrier, Electrical properties, interfaces, Lifetime, optimization, organic compounds, oxide, Oxides, Oxygen, photovoltaic cells, Power conversion efficiency, Stability, thin-films, Vacuum deposition
Créateurs: Addou, Benchouk, Bernede, Cattin, El Jouad, Khelil, Kouskoussa, Makha, Morsli, Ouari
Collection: Indian J. Pure Appl. Phys.
Consultations : 11/1163
Indice de consultation : 7%
Indice de popularité : 1.75%
The behaviour of small-molecule organic solar cells based on copper-phthalocyanine/fullerene with different cathode buffer layer is investigated as a function of air exposure duration. The effect of MoO3 on the properties of photovoltaic solar cells (OPVCs) when it is introduced in the cathode buffer layer (CBL), has been studied. Photovoltaic performances were measured as a function of time of air exposure. During the first days of air exposure, the efficiency of the OPVCs with MoO3 in their CBL increases significantly, while it decreases immediately after air exposure in the case of reference OPVCs, i.e. without MoO3 in the CBL. Nevertheless, the lifetime of the OPVCs with MoO3 in their CBL is around 60 days, while it is only 10 days in the case of reference OPVCs. The initial increase of the OPVC with MoO3 in their CBL is attributed to the slow decrease of the work function of MoO3 due to progressive contamination. Then, the progressive degradation of the OPVCs efficiency is due to water vapour and oxygen contamination of the organic layers. The use of double CBL, Alq(3)/MoO3, allows to interrupt the growth of pinholes, defects and increases the path of permeating gas. Also it can prevent the contamination of the organic layer by Al. All this results in significant increase of the lifetime of the OPVCs.
Added by: Laurent Cournède  
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