The first example of a heteroarylvinylene pi-conjugated quaterpyridine Ru(II) sensitizer (N1044) was synthesized and used in dye-sensitized solar cells; the dye has an effective panchromatic absorption band, covering the entire visible spectrum up to the NIR region, and superior electrochemical characteristics (HOMO/LUMO and bandgap energies) with respect to previous representative Ru(II) bi- and quaterpyridine sensitizers. A record IPCE curve ranging from 360 to 920 nm has been measured with a maximum of 65% at 646 nm and still 33% efficiency at 800 nm; this leads to substantially increased photocurrent (19.2 mA cm(-2)) when compared to the prototype N719 Ru(II) sensitizer.

Abbotto, A., Sauvage, F., Barolo, C., De Angelis, F., Fantacci, S., Graetzel, M., et al. (2011). Panchromatic ruthenium sensitizer based on electron-rich heteroarylvinylene π-conjugated quaterpyridine for dye-sensitized solar cells. DALTON TRANSACTIONS, 40(1), 234-242 [10.1039/c0dt01190h].

Panchromatic ruthenium sensitizer based on electron-rich heteroarylvinylene π-conjugated quaterpyridine for dye-sensitized solar cells

ABBOTTO, ALESSANDRO;MANFREDI, NORBERTO;
2011

Abstract

The first example of a heteroarylvinylene pi-conjugated quaterpyridine Ru(II) sensitizer (N1044) was synthesized and used in dye-sensitized solar cells; the dye has an effective panchromatic absorption band, covering the entire visible spectrum up to the NIR region, and superior electrochemical characteristics (HOMO/LUMO and bandgap energies) with respect to previous representative Ru(II) bi- and quaterpyridine sensitizers. A record IPCE curve ranging from 360 to 920 nm has been measured with a maximum of 65% at 646 nm and still 33% efficiency at 800 nm; this leads to substantially increased photocurrent (19.2 mA cm(-2)) when compared to the prototype N719 Ru(II) sensitizer.
Articolo in rivista - Articolo scientifico
solar cells, ligands, complexes
English
234
242
Abbotto, A., Sauvage, F., Barolo, C., De Angelis, F., Fantacci, S., Graetzel, M., et al. (2011). Panchromatic ruthenium sensitizer based on electron-rich heteroarylvinylene π-conjugated quaterpyridine for dye-sensitized solar cells. DALTON TRANSACTIONS, 40(1), 234-242 [10.1039/c0dt01190h].
Abbotto, A; Sauvage, F; Barolo, C; De Angelis, F; Fantacci, S; Graetzel, M; Manfredi, N; Marinzi, C; Nazeeruddin, M
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/21186
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