000118724 001__ 118724
000118724 005__ 20240319081014.0
000118724 0247_ $$2doi$$a10.1016/j.dyepig.2022.110566
000118724 0248_ $$2sideral$$a129980
000118724 037__ $$aART-2022-129980
000118724 041__ $$aeng
000118724 100__ $$aRoyo Sánchez, R.$$uUniversidad de Zaragoza
000118724 245__ $$aPyranylidene/trifluoromethylbenzoic acid-based chromophores for dye-sensitized solar cells
000118724 260__ $$c2022
000118724 5060_ $$aAccess copy available to the general public$$fUnrestricted
000118724 5203_ $$aThe synthesis and photovoltaic study of five dyes based on 4H-pyranylidene moiety as donor moiety is reported. A thiophene unit conjugated with/without an ethynyl bond acts as the p-relay and benzoic acid as the anchor group with/without a trifluoromethyl group. Their electrochemical and optical properties are analyzed by using a joint experimental and theoretical approach. The presence of the trifluoromethyl group leads to an enhancement of the molar extinction coefficient, being slightly when a hexyl chain is introduced in the thiophene ring, but does not modify the oxidation potential. For the preparation of derived solar cells an antiaggregant is essential in all cases. The photovoltaic performance is sensitive to the structural modification of the dye: the CF3 group and the hexyl chain of the thiophene spacer were shown to improve the efficiency. The lack of a triple bond in the p-spacer involves a lower photovoltaic efficiency, and the trifluoromethyl group leads to a lower dye-load, but a decrease of the recombination processes. These results are in accordance with the electrochemistry impedance spectroscopy studies carried out. Moreover, the organic dyes have been also tested with a fluorescent lamp (indoor conditions), leading to an increase of the efficiency, reaching a 36% for the best dye. © 2022 The Authors
000118724 536__ $$9info:eu-repo/grantAgreement/ES/DGA-FEDER/E47-20R$$9info:eu-repo/grantAgreement/ES/MICINN/PID2019-104307GB-I00-AEI-10.13039-501100011033
000118724 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000118724 590__ $$a4.5$$b2022
000118724 592__ $$a0.683$$b2022
000118724 591__ $$aCHEMISTRY, APPLIED$$b18 / 72 = 0.25$$c2022$$dQ1$$eT1
000118724 593__ $$aChemical Engineering (miscellaneous)$$c2022$$dQ1
000118724 591__ $$aMATERIALS SCIENCE, TEXTILES$$b3 / 25 = 0.12$$c2022$$dQ1$$eT1
000118724 593__ $$aProcess Chemistry and Technology$$c2022$$dQ2
000118724 591__ $$aENGINEERING, CHEMICAL$$b40 / 141 = 0.284$$c2022$$dQ2$$eT1
000118724 594__ $$a8.3$$b2022
000118724 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000118724 700__ $$0(orcid)0000-0001-8253-8741$$aDomínguez Celorrio, A.
000118724 700__ $$0(orcid)0000-0001-9747-1789$$aFranco Ontaneda, S.$$uUniversidad de Zaragoza
000118724 700__ $$0(orcid)0000-0002-3206-9868$$aAndreu Solano, R.$$uUniversidad de Zaragoza
000118724 700__ $$aOrduna, J.
000118724 7102_ $$12013$$2765$$aUniversidad de Zaragoza$$bDpto. Química Orgánica$$cÁrea Química Orgánica
000118724 773__ $$g206 (2022), 10566 [12 pp]$$pDyes pigm.$$tDyes and Pigments$$x0143-7208
000118724 8564_ $$s3360211$$uhttps://zaguan.unizar.es/record/118724/files/texto_completo.pdf$$yVersión publicada
000118724 8564_ $$s2431167$$uhttps://zaguan.unizar.es/record/118724/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000118724 909CO $$ooai:zaguan.unizar.es:118724$$particulos$$pdriver
000118724 951__ $$a2024-03-18-15:24:45
000118724 980__ $$aARTICLE