Details

Autor(en) / Beteiligte

• Abbotto, Alessandro
• Sauvage, Frederic
• Barolo, Claudia
• De Angelis, Filippo
• Fantacci, Simona
• Graetzel, Michael
• Manfredi, Norberto
• Marinzi, Chiara
• Nazeeruddin, Mohammad K

Titel

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

Ist Teil von

• Dalton transactions : an international journal of inorganic chemistry, 2011-01, Vol.40 (1), p.234-242

Ort / Verlag

England

Erscheinungsjahr

2011

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The first example of a heteroarylvinylene π-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.