Data di Pubblicazione:
2011
Citazione:
Copper(I) complexes and their application dye sensitized solar cells / P. Biagini, A. Colombo, C. Dragonetti, F. Melchiorre, D.M. Roberto, A. Valore. ((Intervento presentato al 24. convegno Congresso Nazionale della Società Chimica Italiana tenutosi a Lecce nel 2011.
Abstract:
The easy prevision that in the near future the price of the energy derived from fossil fuels
could be significantly increased and the well note limits in the applications of silicon-based
photovoltaic (PV), get to the conclusion that the development of new, efficient and low-cost PV
technologies will be more and more required. Up to day dye sensitized solar cells (DSSCs)
represent one of the more attractive technological alternative to silicon-based PV. In this context,
the best efficiency for the conversion of solar energy has been realized using a large number of
Ru(II) polypyridyl complexes [1], however very good results were also obtained in the presence of
metal-free organic dyes [2]. Recently also Cu(I) complexes have been proposed as effective
sensitizers in DSSCs [3] even if their efficiency is much lower than that obtained with Ru-based
devices, nevertheless copper still remains very interesting in this application because it can offer a
considerable opportunity for reduction in cost.
Here we report the synthesis of suitable substituted 2,2’-dipyridil (Scheme 1) together with
the corresponding bis-dipy Cu(I) complex.
Scheme 1
Several DSSCs devices have been prepared employing Cu(I) complexes with different protonation
degree of the ligand 1, and the results have been discussed as a function of the variation of the
electrolyte.
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2003, 1456; c) A. Abbotto, C. Barolo, L. Bellotto, F. De Angelis, M. Grätzel, N. Manfredi, C. Marinzi, S. Fantacci,
J. –H. Yum and M. K. Nazeeruddin, Chem. Commun., 2008, 5318.
[2] A. Mishra, M. K. R. Fisher and P. Bäuerle, Angew. Chem. Int. Ed., 48, 2009, 2474.
[3] a) N. Alonse-Vante, J. –F. Nierengarten and J. –P. Sauvage, J. Chem. Soc., Dalton Trans., 1996, 1649; b) S. Sakaki,
T. Kuroki and T. Hamada, J. Chem. Soc., Dalton Trans., 2002, 840; c) N. Robertson, ChemSusChem 1, 2008, 977;
d) E. C. Constable, A. Hernadez Redondo, C. E. Housecroft, M. Neuburger and S. Schaffner, Dalton Trans., 2009,
6634.
Tipologia IRIS:
14 - Intervento a convegno non pubblicato
Elenco autori:
P. Biagini, A. Colombo, C. Dragonetti, F. Melchiorre, D.M. Roberto, A. Valore
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