RT Journal Article T1 Tetrasubstituted Thieno[3,2-b]thiophenes as Hole-Transporting Materials for Perovskite Solar Cells A1 Urieta Mora, Javier A1 García Benito, Inés A1 Zimmermann, Iwan A1 Aragó, Juan A1 Molina Ontoria, Agustín A1 Ortí, Enrique A1 Martín León, Nazario A1 Nazeeruddin, Mohammad Khaja AB Three 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. PB AMERICAN CHEMICAL SOCIETY SN 0022-3263 SN 1520-6904 YR 2019 FD 2019-11-25 LK https://hdl.handle.net/20.500.14352/115916 UL https://hdl.handle.net/20.500.14352/115916 LA eng NO Urieta-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. 224-33 NO Ministerio de Economía y Competitividad (España) NO Swiss National Funds for Scientific Research NO European Research Council NO Comunidad de Madrid NO GENERALITAT VALENCIANA DS Docta Complutense RD 19 abr 2025