Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/93859
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Carbon nanofiber-based counter electrodes for low cost dye-sensitized solar cells |
Autor: | Sebastián del Río, David CSIC ORCID ; Baglio, Vincenzo; Girolamo, M.; Moliner Álvarez, Rafael CSIC ORCID; Lázaro Elorri, María Jesús CSIC ORCID ; Aricò, Antonino Salvatore | Palabras clave: | Dye-sensitized solar cells Carbon nanofibres Counter electrodes Stability |
Fecha de publicación: | 15-nov-2013 | Editor: | Elsevier BV | Citación: | Journal of Power Sources 250: 242-249 (2013) | Resumen: | Carbon materials represent an attractive alternative to platinum in dye-sensitized solar cells (DSSC) counter electrodes to contribute to an efficient conversion of solar energy into electricity. The use of highly graphitic carbon nanofibers (CNFs) is investigated by analyzing the effect of the filament diameter, surface area and graphitization degree on the DSSC cathode performance. To this purpose, transmission electron microscopy (TEM), X-ray diffraction (XRD), Raman spectroscopy and physisorption analysis are used to characterize the main properties of the CNFs. The behavior of CNFs as counter electrodes in DSSC is investigated by polarization experiments and electrochemical impedance spectroscopy. Among the different materials, the CNF characterized by the highest surface area (183 m2 g-1), thinnest filament size (24 nm) and highest density of surface defects shows the best performance in terms of efficiency, open circuit potential and short circuit current density. Further investigation of the electrode thickness together with series and charge transfer resistance cross-analysis evidences the key role played by the surface area and surface graphitization to obtain a suitable performance. Compared to literature, so-obtained CNFs represent an interesting alternative to manufacture low cost DSSC cathodes. | Descripción: | 8 páginas.- 5 tablas.- 11 figuras. | Versión del editor: | http://dx.doi.org/10.1016/j.jpowsour.2013.10.142 | URI: | http://hdl.handle.net/10261/93859 | DOI: | 10.1016/j.jpowsour.2013.10.142 | ISSN: | 0378-7753 |
Aparece en las colecciones: | (ICB) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
Carbon_nanofiber_based_counter.pdf | 553,42 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
65
checked on 20-abr-2024
WEB OF SCIENCETM
Citations
58
checked on 25-feb-2024
Page view(s)
407
checked on 19-abr-2024
Download(s)
411
checked on 19-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.