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, L., La Notte, L., Paronesso, G., Susanna, G., Cinà, L., Polino, G., Mattiello, L., Catini, A., Di Natale, C., Martinelli, E., Di Carlo, A., Brunetti, F., Brown, T.M., Reale, A.. - 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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