Low-band gap polymers as donors are the new approach to realize high efficiency polymer solar cells. Among them, PTB7-Th is one of the most promising candidates, thanks to the possibility of exploiting deposition protocols (technique, solvent, concentration) from the most-known PTB7, and demonstrating a power conversion efficiency exceeding 10%. In this paper, we focus on the role of the ink concentration for the film deposition and formation of the active layer. The effect of the solid content (PTB7-Th:[70]PCBM) in an ortho-xylene based solution on the polymer solar cell performance are investigated. Farther, a correlation between solid content and DIO additive in the ink formulation with respect to device performance is discussed. A remarkable PCE of 8.2% has been demonstrated.
On the role of PTB7-Th:[70]PCBM blend concentration in ortho-xylene on polymer solar cells performance / Salamandra, Luigi; La Notte, Luca; Paronesso, Giorgia; Susanna, Gianpaolo; Cinà, Lucio; Polino, Giuseppina; Mattiello, Leonardo; Catini, Alexandro; Di Natale, Corrado; Martinelli, Eugenio; Di Carlo, Aldo; Brunetti, Francesca; Brown, Thomas Meredith; Reale, Andrea. - In: ENERGY TECHNOLOGY. - ISSN 2194-4288. - STAMPA. - (2017), pp. ---. [10.1002/ente.201700237]
On the role of PTB7-Th:[70]PCBM blend concentration in ortho-xylene on polymer solar cells performance
MATTIELLO, Leonardo;
2017
Abstract
Low-band gap polymers as donors are the new approach to realize high efficiency polymer solar cells. Among them, PTB7-Th is one of the most promising candidates, thanks to the possibility of exploiting deposition protocols (technique, solvent, concentration) from the most-known PTB7, and demonstrating a power conversion efficiency exceeding 10%. In this paper, we focus on the role of the ink concentration for the film deposition and formation of the active layer. The effect of the solid content (PTB7-Th:[70]PCBM) in an ortho-xylene based solution on the polymer solar cell performance are investigated. Farther, a correlation between solid content and DIO additive in the ink formulation with respect to device performance is discussed. A remarkable PCE of 8.2% has been demonstrated.| File | Dimensione | Formato | |
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