Co-adsorbing effect of bile acids containing bulky amide groups at 3β-position on the photovoltaic performance in dye-sensitized solar cells
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Scholar |
Otros documentos de la autoría: Soto-Navarro, Andrea; Alfaro, Ariel; Soto-Tellini, Víctor Hugo; Moehl, Thomas; Barea, Eva M; Fabregat-Santiago, Francisco; Pineda, Leslie William
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Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
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https://doi.org/10.1016/j.solener.2019.07.047 |
Metadatos
Título
Co-adsorbing effect of bile acids containing bulky amide groups at 3β-position on the photovoltaic performance in dye-sensitized solar cellsAutoría
Fecha de publicación
2019Editor
ElsevierISSN
0038-092X; 1471-1257Cita bibliográfica
SOTO-NAVARRO, Andrea, et al. Co-adsorbing effect of bile acids containing bulky amide groups at 3β-position on the photovoltaic performance in dye-sensitized solar cells. Solar Energy, 2019, vol. 189, p. 94-102Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://www.sciencedirect.com/science/article/pii/S0038092X19307091Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
Co-adsorbing molecules attain certain control in the surrounding of the dyes leading to enhanced efficiencies mainly by affecting the recombination of the photogenerated electrons and aggregation of dyes. Bile acids ... [+]
Co-adsorbing molecules attain certain control in the surrounding of the dyes leading to enhanced efficiencies mainly by affecting the recombination of the photogenerated electrons and aggregation of dyes. Bile acids such as deoxycholic acid (DOA) and chenodeoxycholic acid (CDOA) yield competitive photovoltaic parameters. We harness the steroid backbone of bile acids to chemically modified it at its R3 position attaching sterically demanding amide groups rather than typically terminal hydroxyl groups (3β-position) as in DOA and CDOA. All possible resultant effects on the performance in complete DSSCs were studied by current density-voltage curves (e.g., percentage of efficiency, %η; open-circuit voltage, Voc; short-circuit photocurrent, Jsc; and fill factor, FF), incident photon-to-current conversion efficiency (IPCE), and a set of interfacial data by electrochemical impedance spectroscopy (EIS). Our co-adsorbates stand out by enhancing the conversion efficiencies, being in some cases competitive with photovoltaic parameters of DOA and CDOA. [-]
Publicado en
Solar Energy, 2019, vol. 189, p. 94-102Proyecto de investigación
The authors are thankful to Centro de Electroquímica y Energía Química (CELEQ), Escuela de Química, Sistema de Estudios de Posgrado (SEP) and Vicerrectoría de Investigación, Universidad de Costa Rica (project number 804-B2-A01) for financial support. A. S.-N. greatly acknowledges an Orlando Bravo fellowship by CELEQ, Universidad de Costa Rica, and M.S. Paola Fuentes (CELEQ) for fruitful discussions about statistical analysis; and is very grateful with Grup de Dispositius Fotovoltaics i Optoelectrònics, from Universidad Jaumé I and Prof. Juan Bisquert, for a research stay.Derechos de acceso
© 2019 International Solar Energy Society. Published by Elsevier Ltd. All rights reserved.
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