130808 20240319080958.0 doi 10.1016/j.dyepig.2022.110310 sideral 128723 ART-2022-128723 eng Duerto, I. (orcid)0000-0001-9690-9662 Enhancing the temporal stability of DSSCs with novel vinylpyrimidine anchoring and accepting group 2022 Access copy available to the general public Unrestricted Three compounds based on aniline, thiophene and vinylpyrimidine as anchoring group have been prepared and studied as light harvesting units for dye-sensitized solar cells (DSSCs). They comprise thiophenyl p-spacer systems with one or two thiophenes (AT-Pyri, ATT-Pyri) and aniline as donor which is functionalized, in one case, with an hydroxyl group (HO-AT-Pyri). The bithiophene based dye (ATT-Pyri) shows higher extinction coefficients and smaller transition energy, as well as broader absorption spectrum. Thus, despite lower dye uptake, devices based on one thiophene and with the hydroxyl group (HO-AT-Pyri) have slightly higher power conversion efficiencies (¿) as compared with the analogous dye without this group (AT-Pyri). However, the best performing device is based on the dye with bithiophene bridge (ATT-Pyri) when a co-adsorbent is added to avoid the aggregation of the dye. The photovoltaic parameters of cells based on these vinylpyrimidine dyes are enhanced over 1000 h, especially for ATT-Pyri devices, which reach a ¿ = 6, 4%. © 2022 The Authors info:eu-repo/grantAgreement/ES/DGA/E47-20R info:eu-repo/grantAgreement/ES/MICINN/PID2019-104307GB-I00-AEI-10.13039-501100011033 info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 4.5 2022 CHEMISTRY, APPLIED 18 / 72 = 0.25 2022 Q1 T1 MATERIALS SCIENCE, TEXTILES 3 / 25 = 0.12 2022 Q1 T1 ENGINEERING, CHEMICAL 40 / 141 = 0.284 2022 Q2 T1 0.683 2022 Chemical Engineering (miscellaneous) 2022 Q1 Process Chemistry and Technology 2022 Q2 8.3 2022 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Sarasa, S. Barrios, D. Universidad de Zaragoza (orcid)0000-0003-1466-5719 Orduna, J. (orcid)0000-0003-3514-2570 Villacampa, B. Universidad de Zaragoza (orcid)0000-0001-9814-0834 Blesa, M. -J Universidad de Zaragoza (orcid)0000-0001-7193-1732 2013 765 Universidad de Zaragoza Dpto. Química Orgánica Área Química Orgánica 2003 395 Universidad de Zaragoza Dpto. Física Materia Condensa. Área Física Materia Condensada 203, 110310 (2022), - Dyes pigm. Dyes and Pigments 0143-7208 3270252 http://zaguan.unizar.es/record/130808/files/texto_completo.pdf Versión publicada 2572894 http://zaguan.unizar.es/record/130808/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:130808 articulos driver 2024-03-18-13:53:50 ARTICLE