Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12779/6247
Title: Assessment of new gem-silanediols as suitable sensitizers for dye-sensitized solar cells
Authors: Barozzino Consiglio, G.
Pedna, F.
Fornaciari, C.
Fabrizi De Biani, Fabrizia 
Marotta, G.
Salvatori, P.
Basosi, Riccardo 
De Angelis, F.
Mordini, A.
Parisi, Maria Laura 
Peruzzini, M.
Reginato, G.
Taddei, Maurizio 
Zani, L.
Keywords: Dye-sensitized solar cells; Organic sensitizer; gem-Silanediol; Cyclic voltammetry; TD-DFT calculations
Issue Date: 2013
Project: None 
Journal: JOURNAL OF ORGANOMETALLIC CHEMISTRY
Abstract: 
Four novel gem-silanediol-containing organic dyes featuring a highly conjugated backbone have been synthesized in order to investigate their potential as active materials for photovoltaics. After spectroscopic characterization, the compounds showing the best light harvesting and electrochemical properties were applied as sensitizers in dye-sensitized solar cells (DSSCs). Interestingly, photovoltaic cells built using the new silanediol dyes showed low power conversion efficiencies (η), comparable to those obtained with silicon-based sensitizers having simple azobenzene moieties as the light-harvesting units. Such values are mostly due to unsatisfactory photocurrent densities; a computational study suggested that the latter can be justified considering the insufficient degree of charge transfer taking place during photoexcitation of the silicon-containing sensitizers, which is likely to make electron injection into the TiO2 layer less efficient
Description: 
56650
URI: http://hdl.handle.net/20.500.12779/6247
ISSN: 0022-328X
DOI: 10.1016/j.jorganchem.2012.10.012
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