Organic dyes incorporating low-band-gap chromophores based on ?-extended benzothiadiazole for dye-sensitized solar cells (Articolo in rivista)

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  • Organic dyes incorporating low-band-gap chromophores based on ?-extended benzothiadiazole for dye-sensitized 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.2011.03.015 (literal)
Alternative label
  • Dong Hyun Lee, Myung Jun Lee, Hae Min Song, Bok Joo Song, Kang Deuk Seo, Mariachiara Pastore, Chiara Anselmi, Simona Fantacci, Filippo De Angelis, Mohammad K. Nazeeruddin, Michael Gräetzel, Hwan Kyu Kim (2011)
    Organic dyes incorporating low-band-gap chromophores based on ?-extended benzothiadiazole for dye-sensitized solar cells
    in Dyes and pigments
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Dong Hyun Lee, Myung Jun Lee, Hae Min Song, Bok Joo Song, Kang Deuk Seo, Mariachiara Pastore, Chiara Anselmi, Simona Fantacci, Filippo De Angelis, Mohammad K. Nazeeruddin, Michael Gräetzel, Hwan Kyu Kim (literal)
Pagina inizio
  • 192 (literal)
Pagina fine
  • 198 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.sciencedirect.com/science/article/pii/S0143720811000751 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 91 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 7 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 2 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Dong Hyun Lee, Myung Jun Lee, Hae Min Song, Bok Joo Song, Kang Deuk Seo, Hwan Kyu Kim: Department of Advanced Materials Chemistry & Center for Advanced Photovoltaic Materials (ITRC), Korea University, ChungNam 339-700, Republic of Korea Mariachiara Pastore, Chiara Anselmi, Simona Fantacci, 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 Simona Fantacci: Italian Institute of Technology (IIT), Center for Biomolecular Nanotechnologies, Via Barsanti 73010, Arnesano, Lecce, 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
  • Organic dyes incorporating low-band-gap chromophores based on ?-extended benzothiadiazole for dye-sensitized solar cells (literal)
Abstract
  • A series of new ?-conjugated organic dyes (HKK-BTZ1, HKK-BTZ2, HKK-BTZ3 and HKK-BTZ4), comprising triphenylamine (TPA) moieties as the electron donor and benzothiadiazole moieties as the electron acceptor/anchoring groups, was synthesized for the use in dye-sensitized solar cells (DSSCs). TPA units are bridged to benzothiadiazole with single(S), double(D) and triple bonds(T) in different derivatives. And HKK-BTZ1 was modified by introducing alkoxy group of TPA unit, because the bulky alkoxy group is a strong donating group for the more red shift and for reducing aggregation of dyes in TiO2 film. The structure-property relationship was investigated. Under standard global AM 1.5 G illumination, a maximum photo-to-electron conversion efficiency of 7.30% was achieved with the DSSC based on dye HKK-BTZ4 (JSC = 17.9 mA/cm-2, VOC = 0.62 V, FF = 0.66), while the Ru dye N719-sensitized DSSC showed an efficiency of 7.82% with a JSC of 17.5 mA/cm-2, a VOC of 0.62 V, and a FF of 0.72. (literal)
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