Aniés, FilipFurlan, FrancescoQiao, ZhuoranPirela, ValentinaBidwell, MatthewRimmele, MartinaMartín, JaimeGasparini, NicolaHeeney, Martin2023-04-262023-04-262023-03-28ANIÉS, F., FURLAN, F., QIAO, Z., PIRELA, V., BIDWELL, M., RIMMELE, M., MARTÍN, J., GASPARINI, N. y HEENEY, M., 2023. A comparison of para , meta , and ortho -carborane centred non-fullerene acceptors for organic solar cells. 2023. Cambridge, U.K. : Royal Society of Chemistry. Journal of materials chemistry., 11.2050-7534http://hdl.handle.net/2183/32938[Abstract]: We report the first examples of carborane-containing non-fullerene acceptors (NFAs), and their use in organic photovoltaic (OPV) devices. NFAs employing an A–D–A′–D–A type design centred around a central electron withdrawing carborane unit (A′), using either para, meta, or ortho-carborane isomers are reported. We demonstrate that the nature of the isomer has a major impact on device performance, despite minor differences in optoelectronic and morphological properties, with the use of ortho-carborane resulting in the highest device efficiencies. We further show that end-group fluorination is an efficient strategy to modulate energy levels and improve device performance of such NFAs.engAttribution 3.0 Unportedhttp://creativecommons.org/licenses/by/3.0/es/journal articleopen accesshttps://doi.org/10.1039/D2TC05018H