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Ftouhi, H., Lamkaouane, H., Diani, M., Louarn, G., Arzel, L., Bernede, J.-C., Addou, M. & Cattin, L. (2022) Ternary Planar Heterojunction Organic Solar Cells Based on the Ternary Active Layers: α-6T/AlPcCl/C60. Solar, 2 375–384. 
Added by: Richard Baschera (2022-11-07 14:31:37)   Last edited by: Richard Baschera (2022-11-07 14:32:41)
Type de référence: Article
DOI: 10.3390/solar2030022
Numéro d'identification (ISBN etc.): 2673-9941
Clé BibTeX: Ftouhi2022b
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Mots-clés: alpha-sexithiophene, aluminum phthalocyanine chloride, ambipolar organic layer, Organic photovoltaic cells
Créateurs: Addou, Arzel, Bernede, Cattin, Diani, Ftouhi, Lamkaouane, Louarn
Collection: Solar
Consultations : 13/173
Indice de consultation : 8%
Indice de popularité : 2%
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Ternary planar heterojunction organic solar cells (PHJ-OPVs) were fabricated using three organic small molecules, alpha-sexithiophene (α-6T), aluminum phthalocyanine chloride (AlPcCl) and fullerene (C60). These molecules can be easily sublimated under a vacuum; they have complementary optical absorption spectra and their energy band structure alignment is favorable for electronic charge transfers. Moreover, α-6T and AlPcCl have almost the same HOMO, which is desirable to avoid any decrease in open circuit voltage. The AlPcCl intercalated layer bridges the energy levels of the electron donor, α-6T, and the electron acceptor, C60, which facilitates charge transport through the energy cascade effect. Moreover, the charge carrier mobility measurements of AlPcCl, using the space charge limited current method, demonstrated that it iss ambipolar. All these properties combine to improve the power conversion efficiency (PCE) of PHJ-OPVs by moving from binary structures (α-6T/C60, α-6T/AlPcCl and AlPcCl/C60) to ternary ones (α-6T/AlPcCl/C60). We show, in this study, that both interfaces of the ternary PHJ-OPVs are efficient for carrier separation. After optimization of the different layer thickness, we show that, by comparing the optimum efficiencies of the binary PHJ-OPVs, the realization of ternary PHJ-OPVs, based on the active layers α-6T/AlPcCl/C60, using the following optimized method, allows us to achieve a PCE of 4.33%.
Number: 3 Publisher: Multidisciplinary Digital Publishing Institute
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