(Invited) Organic Charge Transporting-Layers and Additives in Perovskite Solar Cells

In the present communication we will focus on the use of organic charge transporting materials that have synthesized in our lab and used to prepare Perovskite-based Solar Cells. 1,2 In our research group we have dedicated a great effort on the preparation and study of novel organic compounds for their incorporation in perovskite solar devices, either as hole or electron-transporting layers. Thus, we have reported the use of fullerenes 3,4 and NDIs 5 as electron transporting layers in PSCs, to prepare efficient and stable devices. On the other hand we have prepared a great variety of hole transporting materials, including polymers, 6 and Oligotryarylamine (OTA) functionalized with different cores such as HexaArylBenzene (HAB), 7 fullerene, 8 or pillarene 9 among others, to prepare highly efficient and stable in PSCs. Acknowledgments We would like to thank the research groups of Prof. Mora-Seró (Castellón, Spain), Prof. Martín (Madrid, Spain), Prof. Grätzel / Zakeeruddin (Lausanne, Switzerland), Prof. Chuvilin (San Sebastián, Spain), Prof. Nazeeruddin (Sion, Switzerland), Prof. Abate (HBZ, Berlin), Prof Seki (Kyoto, Japan), Prof. Nierengarten (Strasbourg, France). References 1) Pascual, J.; Delgado, J. L.; Tena-Zaera, R. J. Phys. Chem. Lett . 2018, 9, 28933; 2) S. F. Volker, S. Collavini, J. L. Delgado, ChemSusChem 2015, 8, 3012. 3) Collavini, S.; Kosta, I.; Völker, S. F.; Cabanero, G.; Grande, H. J.; Tena-Zaera, R.; Delgado, J. L. ChemSusChem 2016, 9, 1263; 4) Pascual, J.; Kosta, I.; Ngo, T. T.; Chuvilin, A.; Cabanero, G.; Grande, H. J.; Barea, E. M.; Mora-Seró, I.; Delgado, J. L.; Tena-Zaera, R. ChemSusChem VIP 2016, 9, 2679; 5) S. Valero, A. Cabrera-Espinoza, S. Collavini, J. Pascual, N. Marinova, I. Kosta, J. L. Delgado, Eur. J. Org. Chem . 2020, 5329; 6) S. Valero, S. Collavini, S. F. Völker, M. Saliba, W. R. Tress, S. M. Zakeeruddin, M. Grätzel, and J. L. Delgado, Macromolecules , 2019, 52, 2243; 7) M. Shasti, S. F. Völker, S. Collavini, S. Valero, F. Ruipérez, A. Mortezaali, S. M. Zakeeruddin, M. Grätzel, A. Hagfeldt, J. L. Delgado, Org. Lett ,. 2019 21, 3261; 8) S. F. Völker, M. Vallés-Pelarda, J. Pascual, S. Collavini, F. Ruiperez, E. Zuccatti, L. E. Hueso, R. Tena-Zaera, I. Mora-Seró and J. L. Delgado, Chem.–Eur. J ., 2018, 24, 8524; 9) O.Bettucci, J. Pascual, S.-H. Turren-Cruz, A. Cabrera-Espinoza, W. Matsuda, S. F. Völker, H. Köbler, I. Nierengarten, G. Reginato, S. Collavini, S. Seki, J.-F. Nierengarten, A. Abate, J. L. Delgado, Chem. Eur. J. 2021, 27, 8110–8117 Figure 1