El Jouad, Z., Cattin, L., Martinez, F., Neculqueo, G., Louarn, G., Addou, M., Predeep, P., Manuvel, J. & Bernede, J.-C. (2016) Improvement of pentathiophene/fullerene planar heterojunction photovoltaic cells by improving the organic films morphology through the anode buffer bilayer. Eur. Phys. J.-Appl. Phys, 74 24603.
Added by: Richard Baschera (2016-07-04 14:27:32) Last edited by: Richard Baschera (2016-07-04 14:34:35)
|Type de référence: Article
Numéro d'identification (ISBN etc.): 1286-0042
Clé BibTeX: ElJouad2016
Voir tous les détails bibliographiques
|Catégories: ID2M, INTERNATIONAL, MIOPS
Mots-clés: copper phthalocyanine, layer, oligothiophene, performance, solar-cells, Stability
Créateurs: Addou, Bernede, Cattin, El Jouad, Louarn, Manuvel, Martinez, Neculqueo, Predeep
Collection: Eur. Phys. J.-Appl. Phys
Consultations : 1/736
Indice de consultation : 3%
Indice de popularité : 0.75%
Organic photovoltaic cells (OPVCs) are based on a heterojunction electron donor (ED)/electron acceptor (EA). In the present work, the electron donor which is also the absorber of light is pentathiophene. The typical cells were ITO/HTL/pentathiophene/fullerene/Alq(3)/Al with HTL (hole transport layer) = MoO3, CuI, MoO3/CuI. After optimisation of the pentathiophene thickness, 70 nm, the highest efficiency, 0.81%, is obtained with the bilayer MoO3/CuI as HTL. In order to understand these results the pentathiophene films deposited onto the different HTLs were characterized by scanning electron microscopy, atomic force microscopy, X-rays diffraction, optical absorption and electrical characterization. It is shown that CuI improves the conductivity of the pentathiophene layer through the modification of the film structure, while MoO3 decreases the leakage current. Using the bilayer MoO3/CuI allows cumulating the advantages of each layer.