Data di Pubblicazione:
2013
Citazione:
Metal-free benzodithiophene-containing organic dyes for dye-sensitized
solar cells / E. Longhi, A. Bossi, G. Di Carlo, S. Maiorana, F. De Angelis, P. Salvatori, A. Petrozza, M. Binda, V. Roiati, P.R. Mussini, C. Baldoli, E. Licandro. - In: EUROPEAN JOURNAL OF ORGANIC CHEMISTRY. - ISSN 1434-193X. - 2013:1(2013 Jan), pp. 84-94. [10.1002/ejoc.201200958]
Abstract:
Two new metal-free organic dyes, CR29 and CR52, with high extinction coefficients in the visible spectral region between 400–650 nm, have been synthesized. The donor–acceptor structure of the dyes feature benzodithiophene moieties BDT1 and BDT as rigid π-conjugated spacers, which have so
far been very little studied for dye-sensitized solar cell (DSSC) applications. DFT/TDDFT calculations have been employed to guide the design of the chromophores as wellas to shed light on their electronic and optical properties.
Photophysical and electrochemical characterization studies have been carried out to gather information on the charge
transfer processes occurring at the dye–semiconductor interfaces.
Under standard AM 1.5 conditions, DSSC sensitized with CR29 showed good onversion efficiencies: 5.14% in the liquid electrolyte cell setup and 2.47% in the solid-state DSSC.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Donor-acceptor systems; Dyes/pigments; Sensitizers; Solar cells; Solid state structures
Elenco autori:
E. Longhi, A. Bossi, G. Di Carlo, S. Maiorana, F. De Angelis, P. Salvatori, A. Petrozza, M. Binda, V. Roiati, P.R. Mussini, C. Baldoli, E. Licandro
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