A comparison of carboxypyridine isomers as sensitizers for dye-sensitized solar cells: Assessment of device efficiency and stability (Articolo in rivista)

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  • A comparison of carboxypyridine isomers as sensitizers for dye-sensitized solar cells: Assessment of device efficiency and stability (Articolo in rivista) (literal)
Anno
  • 2014-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.tet.2014.05.076 (literal)
Alternative label
  • Franchi D.; Calamante M.; Reginato G.; Zani L.; Peruzzini M.; Taddei M.; Fabrizi De Biani F.; Basosi R.; Sinicropi A.; Colonna D.; Di Carlo A.; Mordini A. (2014)
    A comparison of carboxypyridine isomers as sensitizers for dye-sensitized solar cells: Assessment of device efficiency and stability
    in Tetrahedron (Oxf., Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Franchi D.; Calamante M.; Reginato G.; Zani L.; Peruzzini M.; Taddei M.; Fabrizi De Biani F.; Basosi R.; Sinicropi A.; Colonna D.; Di Carlo A.; Mordini A. (literal)
Pagina inizio
  • 6285 (literal)
Pagina fine
  • 6295 (literal)
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  • http://www.scopus.com/inward/record.url?eid=2-s2.0-84906094208&partnerID=q2rCbXpz (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 10 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 36 (literal)
Note
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Università Degli Studi di Firenze, Dipartimento di Chimica Ugo Schiff, Via della Lastruccia 13, Sesto Fiorentino, 50019, Italy; CNR - Istituto di Chimica Dei Composti Organometallici (CNR-ICCOM), Via Madonna del Piano 10, Sesto Fiorentino, 50019, Italy; Università Degli Studi di Siena, Dipartimento di Biotecnologie, Chimica e Farmacia, Via A. Moro 2, Siena, 53100, Italy; Centre for Hybrid and Organic Solar Energy (CHOSE), Dipartimento di Ingegneria Elettronica, Università di Roma Tor Vergata, Via del Politecnico 1, Roma, 00133, Italy (literal)
Titolo
  • A comparison of carboxypyridine isomers as sensitizers for dye-sensitized solar cells: Assessment of device efficiency and stability (literal)
Abstract
  • Three novel organic dyes (DF13AeC) carrying regioisomeric carboxypyridine anchoring groups were synthesized by means of a multistep synthetic sequence involving a Pd-catalyzed Stille coupling as the key step. The new compounds underwent full spectroscopic, electrochemical, and computational characterization, and their properties were compared with those of a reference compound endowed with a classic cyanoacrylic acid acceptor (DF15). Photovoltaic measurements showed that dye-sensitized solar cells built with dyes DF13AeC as photosensitizers yielded power conversion efficiencies corresponding to 54e63% of those obtained with the reference compound. Determination of desorption pseudo-first order rate constants indicated that isomers DF13BeC, having the nitrogen atom in neighboring position relative to the carboxylic moiety, were removed from TiO2 more slowly than isomer DF13A or cyanoacrylic derivative DF15, suggesting a possible cooperative effect of the two functional groups on semiconductor binding: such hypothesis was supported by device stability tests carried out on transparent, larger area cells. (literal)
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