http://www.cnr.it/ontology/cnr/individuo/prodotto/ID276545
Near-infrared absorbing unsymmetrical Zn(II) phthalocyanine for dye-sensitized solar cells (Articolo in rivista)
- Type
- 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
- 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)
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- http://www.sciencedirect.com/science/article/pii/S0020169313004325 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
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- 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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