Urieta Mora, JavierGarcía Benito, InésZimmermann, IwanAragó, JuanMolina Ontoria, AgustínOrtí, EnriqueMartín León, NazarioNazeeruddin, Mohammad Khaja2025-01-232025-01-232019-11-25Urieta-Mora, Javier, et al. «Tetrasubstituted Thieno[3,2- b ]Thiophenes as Hole-Transporting Materials for Perovskite Solar Cells». The Journal of Organic Chemistry, vol. 85, n.o 1, enero de 2020, pp. 224-330022-32631520-690410.1021/acs.joc.9b02769https://hdl.handle.net/20.500.14352/115916Three hole-transporting materials (HTMs) were prepared following a straightforward synthetic route by cross-linking arylamine-based ligands with a simple thieno[3,2-b]thiophene (TbT) core. The novel HTMs were fully characterized with standard techniques to gain insight into their optical and electrochemical properties and were incorporated in solution-processed mesoporous (FAPbI3)0.85(MAPbBr3)0.15 perovskite-based solar cells. The similar molecular structure of the synthesized HTMs was leveraged to investigate the role that the bridging units between the conjugated TbT core and the peripheral arylamine units plays on their properties and thereby on the photovoltaic response. A remarkable power conversion efficiency exceeding 18% was achieved for one of the TbT derivatives, which was slightly higher than the value measured for the benchmark spiro-OMeTAD.engAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/journal articlehttps://doi.org/10.1021/acs.joc.9b02769https://pubs.acs.org/doi/10.1021/acs.joc.9b02769?articleRef=controlopen access547Química orgánica (Química)2306 Química Orgánica