152175 20251017144551.0 doi 10.1016/j.dyepig.2019.107945 sideral 115738 ART-2020-115738 eng Duerto, Isolda (orcid)0000-0001-9690-9662 A novel s-linkage to dianchor dyes for efficient dyes sensitized solar cells: 3-methyl-1, 1-cyclohexane 2020 Access copy available to the general public Unrestricted We have synthesized two sensitizers based on the 3-methyl-1, 1-cyclohexane, a novel s-linkage to prepare dianchored dyes. These novel dyes are difunctionalized systems with aniline-donor (D), a p-conjugated spacer (p) based on thiophene or bithiophene and cyanoacetic acid as acceptor and anchoring group (A). The UV–vis absorption and the Differential Pulse Voltammetry have been used to study the effect of both s-linkage and p-spacer. The relevant increase of the molar extinction coefficient of these dianchored dyes has been investigated by theoretical calculations. The dye bearing bithiophene results in a both broader and higher absorption as well as an adequate efficiency to transfer charge from D to A with respect to bithiophene dyes. The photovoltaic properties of these sensitizers without co-adsorbent have been studied. The novel difunctionalized derivatives present a relevant increase of the photocurrent density which results in a better performance with respect to the single dyes. The difunctionalized derivative based on bithiophene has given rise to an efficiency value of 7.8% and is stable up to 1000 h after the device assembly. info:eu-repo/grantAgreement/ES/DGA/E14-17R info:eu-repo/grantAgreement/ES/MICINN-FEDER/CTQ2014-52331-R info:eu-repo/grantAgreement/ES/UZ/UZ2019-CIE-01 info:eu-repo/semantics/openAccess by-nc-nd https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es 4.889 2020 CHEMISTRY, APPLIED 16 / 74 = 0.216 2020 Q1 T1 MATERIALS SCIENCE, TEXTILES 3 / 25 = 0.12 2020 Q1 T1 ENGINEERING, CHEMICAL 33 / 143 = 0.231 2020 Q1 T1 0.826 2020 Process Chemistry and Technology 2020 Q1 Chemical Engineering (miscellaneous) 2020 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion García-Palacín, Marta Barrios, Daniel Universidad de Zaragoza (orcid)0000-0003-1466-5719 Garín, Javier Universidad de Zaragoza (orcid)0000-0001-8265-8970 Orduna, Jesús Universidad de Zaragoza (orcid)0000-0003-3514-2570 Villacampa, Belén Universidad de Zaragoza (orcid)0000-0001-9814-0834 Blesa, María 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 173 (2020), 107945 1-10 Dyes pigm. Dyes and Pigments 0143-7208 893735 http://zaguan.unizar.es/record/152175/files/texto_completo.pdf Postprint 905262 http://zaguan.unizar.es/record/152175/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:152175 articulos driver 2025-10-17-14:11:43 ARTICLE