In the last years research in the field of photovoltaic conversion and materials for solar panel is enormously increased for many fundamental reasons such as reduction of pollution, saving of energy cost and reduction of oil warehouse. Solar cells based upon the semiconductor technology are at the present commercially available; their main disadvantages are the large energy amount required for the production of semiconductors and the rather high manufacturing cost. The main efforts in this field are therefore devoted to reduction of the costs and to an improvement of the efficiency of the solar cells. In this framework, an important class of photovoltaic cells named DSSC (Dye-Sensitized Solar Cells) is extremely promising because it is made of low-cost materials and it is easy to produce. The sensitizer is one of the key components, since it is responsible for the light harvest. It must exhibit excellent light harvesting properties and has to carry anchor groups to guarantee intimate contact with the semiconductor surface. The pioneering and still one of the best sensitizer used for DSSCs is cis-dithiocyanatobis(4,4’- dicarboxylic acid-2,2’-bipyridine)ruthenium(II) (N3). However, recently cyclometallated Ru(II) complexes appeared as promising candidates for DSSCs, in particular due to their long term stability. [1, 2] We synthesized and characterised novel cyclometallated Ru(II) and Ir(III) complexes which have been tested in DSSCs. Details on these studies will be presented. [1] T.Bessho, E.Yoneda, J.Yum, M.Guglielmi, I.Tavernelli, H.Imai, U.Rothlisberger, M.K.Nazeeruddin, and M.Greatzel, J.Am.Chem.Soc., 120, 2009, 5930. [2] P.G.Bomben, B.D. Koivisto, P.C.Berlinguette, Inorg.Chem., 49, 2010, 4960

Novel cyclometallated Ru(II) and Ir(III) complexes as sensitizers for DSSCs / S. Ordanini, S. Bustros, C. Dragonetti, D.M. Roberto, R. Ugo, A. Valore, A. Abbotto, V. Trafiletti. ((Intervento presentato al 24. convegno Congresso Nazionale della Società Chimica Italiana tenutosi a Lecce nel 2011.

Novel cyclometallated Ru(II) and Ir(III) complexes as sensitizers for DSSCs

S. Ordanini
Primo
;
C. Dragonetti;D.M. Roberto;R. Ugo;A. Valore;
2011

Abstract

In the last years research in the field of photovoltaic conversion and materials for solar panel is enormously increased for many fundamental reasons such as reduction of pollution, saving of energy cost and reduction of oil warehouse. Solar cells based upon the semiconductor technology are at the present commercially available; their main disadvantages are the large energy amount required for the production of semiconductors and the rather high manufacturing cost. The main efforts in this field are therefore devoted to reduction of the costs and to an improvement of the efficiency of the solar cells. In this framework, an important class of photovoltaic cells named DSSC (Dye-Sensitized Solar Cells) is extremely promising because it is made of low-cost materials and it is easy to produce. The sensitizer is one of the key components, since it is responsible for the light harvest. It must exhibit excellent light harvesting properties and has to carry anchor groups to guarantee intimate contact with the semiconductor surface. The pioneering and still one of the best sensitizer used for DSSCs is cis-dithiocyanatobis(4,4’- dicarboxylic acid-2,2’-bipyridine)ruthenium(II) (N3). However, recently cyclometallated Ru(II) complexes appeared as promising candidates for DSSCs, in particular due to their long term stability. [1, 2] We synthesized and characterised novel cyclometallated Ru(II) and Ir(III) complexes which have been tested in DSSCs. Details on these studies will be presented. [1] T.Bessho, E.Yoneda, J.Yum, M.Guglielmi, I.Tavernelli, H.Imai, U.Rothlisberger, M.K.Nazeeruddin, and M.Greatzel, J.Am.Chem.Soc., 120, 2009, 5930. [2] P.G.Bomben, B.D. Koivisto, P.C.Berlinguette, Inorg.Chem., 49, 2010, 4960
Settore CHIM/03 - Chimica Generale e Inorganica
Società chimica italiana
Novel cyclometallated Ru(II) and Ir(III) complexes as sensitizers for DSSCs / S. Ordanini, S. Bustros, C. Dragonetti, D.M. Roberto, R. Ugo, A. Valore, A. Abbotto, V. Trafiletti. ((Intervento presentato al 24. convegno Congresso Nazionale della Società Chimica Italiana tenutosi a Lecce nel 2011.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/165953
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