Near-infrared absorbing unsymmetrical Zn(II) phthalocyanine for dye-sensitized solar cells (Articolo in rivista)

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Label
  • Near-infrared absorbing unsymmetrical Zn(II) phthalocyanine for dye-sensitized solar cells (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.ica.2013.07.052 (literal)
Alternative label
  • Varun Kumar Singh (a); Paolo Salvatori (b); Anna Amat (b); Saurabh Agrawal (b); Filippo De Angelis (b); Md.K. Nazeeruddin (c); Narra Vamsi Krishna (a); Lingamallu Giribabu (a) (2013)
    Near-infrared absorbing unsymmetrical Zn(II) phthalocyanine for dye-sensitized solar cells
    in Inorganica Chimica Acta (Testo stamp.)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Varun Kumar Singh (a); Paolo Salvatori (b); Anna Amat (b); Saurabh Agrawal (b); Filippo De Angelis (b); Md.K. Nazeeruddin (c); Narra Vamsi Krishna (a); Lingamallu Giribabu (a) (literal)
Pagina inizio
  • 289 (literal)
Pagina fine
  • 296 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.sciencedirect.com/science/article/pii/S0020169313004325 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 407 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 0 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • a Inorganic & Physical Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500607, India b Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze Tecnologie Molecolari, Via Elce di Sotto 8, I-06123 Perugia, Italy c Laboratory for Photonics and Interfaces, Institute of Chemical Sciences and Engineering, School of Basic Sciences, Swiss Federal Institute of Technology, CH-1015 Lausanne, Switzerland (literal)
Titolo
  • Near-infrared absorbing unsymmetrical Zn(II) phthalocyanine for dye-sensitized solar cells (literal)
Abstract
  • Abstract Unsymmetrical Zn phthalocyanine consisting of six S-aryl groups at ?-positions and a carboxy anchoring group at ?-position has been designed and synthesized for dye-sensitized solar cells (DSCs) applications. The unsymmetrical phthalocyanine has been characterized by elemental, MALDI-MS, IR, 1H NMR, UV-Vis, fluorescence (steady-state & lifetime) and electrochemical (including spectroelectrochemical) methods. The Q-band absorption maxima of the unsymmetrical phthalocyanine was red-shifted due to the presence of S-aryl groups, which destabilizes the {HOMO} level consistent with electrochemical and in situ spectroelectrochemical studies. The redox processes are assigned to the macrocyclic ring-based electron transfer processes, the {LUMO} of the unsymmetrical phthalocyanines lies above the TiO2 conduction band, and the {HOMO} is well below the potential of the I-/I3- redox electrolyte. The experimental results are supported by DFT/TD-DFT studies. The new unsymmetrical phthalocyanines was tested in {DSCs} using I-/I3- redox electrolyte system. (literal)
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