info:eu-repo/semantics/article
Synthesis and photovoltaic applications of a 4,4′- spirobi[cyclopenta[2,1-b;3,4-b′]dithiophene]-bridged donor/acceptor dye
Fecha
2013-09-28Registro en:
Pozzi, Gianluca; Orlandi, Simonetta; Cavazzini, Marco; Minudri, Daniela; Macor, Lorena Paola; et al.; Synthesis and photovoltaic applications of a 4,4′- spirobi[cyclopenta[2,1-b;3,4-b′]dithiophene]-bridged donor/acceptor dye; American Chemical Society; Organic Letters; 15; 18; 28-9-2013; 4642-4645
1523-7060
1523-7052
CONICET Digital
CONICET
Autor
Pozzi, Gianluca
Orlandi, Simonetta
Cavazzini, Marco
Minudri, Daniela
Macor, Lorena Paola
Otero, Luis Alberto
Fungo, Fernando Gabriel
Resumen
A new donor/acceptor (D-A) spiro dye (SCPDT1) featuring two bithiophene units, connected through an sp3-hybridized carbon atom, was prepared by a multistep synthetic sequence involving the convenient assembly of the spiro system under mild catalytic conditions. The photocurrent spectrum of dye-sensitized solar cells incorporating SCPDT1 covers the spectral region ranging from 350 to 700 nm and reaches a wide maximum of ∼80% in the 420-560 nm range. Power conversion efficiencies of up to 6.02% were obtained.