Coumarin dyes containing low-band-gap chromophores for dye-sensitised solar cells (Articolo in rivista)

Type
Label
  • Coumarin dyes containing low-band-gap chromophores for dye-sensitised solar cells (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.dyepig.2011.01.009 (literal)
Alternative label
  • Kang Deuk Seo, Hae Min Song, Myung Jun Lee, Mariachiara Pastore, Chiara Anselmi, Filippo De Angelis, Mohammad K. Nazeeruddin, Michael Gräetzel, Hwan Kyu Kim, (2011)
    Coumarin dyes containing low-band-gap chromophores for dye-sensitised solar cells
    in Dyes and pigments
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Kang Deuk Seo, Hae Min Song, Myung Jun Lee, Mariachiara Pastore, Chiara Anselmi, Filippo De Angelis, Mohammad K. Nazeeruddin, Michael Gräetzel, Hwan Kyu Kim, (literal)
Pagina inizio
  • 304 (literal)
Pagina fine
  • 310 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.sciencedirect.com/science/article/pii/S0143720811000313 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 90 (literal)
Rivista
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  • 7 (literal)
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  • 3 (literal)
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  • Kang Deuk Seo, Hae Min Song, Myung Jun Lee, Hwan Kyu Kim:Department of Advanced Materials Chemistry & Centre for Advanced Photovoltaic Materials (ITRC), Korea University, 208 Seochang Jochiwon, Jochiwon, Chungnam 339-700, Republic of Korea Mariachiara Pastore, Chiara Anselmi, Filippo De Angelis: Istituto CNR di Scienze e Tecnologie Molecolari c/o Dipartimento di Chimica Università di Perugia, via Elce di Sotto 8, I-06123, Perugia, Italy Mohammad K. Nazeeruddin, Michael Gräetzel: Laboratory for Photonics and Interfaces, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Federale de Lausanne, 1015 Lausanne, Switzerland (literal)
Titolo
  • Coumarin dyes containing low-band-gap chromophores for dye-sensitised solar cells (literal)
Abstract
  • A series of coumarin dyes containing a low-band-gap chromophore of ethylenedioxythiophene (EDOT), which comprises a coumarin moiety as the electron donor and a cyanoacrylic acid moiety as electron acceptor in D-?-A chromophores, were developed for use in dye-sensitised solar cells (DSSCs). These coumarin dyes have been used to fabricate DSSCs using I-/I3- liquid electrolytes and their device performances were compared with that of NKX-2677 as a standard dye. Even though HKK-CM2 and HKK-CM3 have more extended aromatic units than HKK-CM1, the degree of ?-conjugation in HKK-CM2 and HKK-CM3 is less efficient than that of HKK-CM1, due to the relatively larger torsion angle between the plane of the donor and that of the acceptor. It is also in a good agreement with Density Functional Theory (DFT) calculations. As a result, a solar cell based on HKK-CM1 sensitiser shows better photovoltaic performance with JSC of 14.2 mA cm-2, VOC of 0.60 V, and a fill factor of 0.70, corresponding to an overall conversion efficiency ? of 6.07% under the standard AM 1.5 irradiation, than HKK-CM2 and HKK-CM3-based solar cells. (literal)
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