Characterisation and application of new carboxylic acid-functionalised ruthenium complexes as dye-sensitisers for solar cells

Autor: Frederik C. Krebs, Virginie Duprez, Matteo Biancardo
Rok vydání: 2007
Předmět:
Zdroj: Solar Energy Materials and Solar Cells. 91:230-237
ISSN: 0927-0248
DOI: 10.1016/j.solmat.2006.08.007
Popis: A series of ruthenium complexes with and without TiO 2 anchoring carboxylic acid groups have been synthesised and characterised using nuclear magnetic resonance (NMR), UV–vis and luminescence. These complexes were adsorbed on thin films of the wide band-gap semiconductor anatase and were tested as photosensitisers under standard conditions. I/V characteristics of such devices revealed superior performance of the non-symmetric complexes [4′-(4-bromophenyl)-[2,2′; 6′,2″] terpyridine]Ru(II) [4′-(4-bromophenyl)-[2,2′; 6′,2″] terpyridine-4,4″-dicarboxylic acid] and [2,2′; 6′,2″] terpyridine Ru(II) [2,2′; 6′,2″] terpyridine-4′-carboxylic acid with a maximum output power ∼0.016 mW cm −2 under illumination at 100 mW cm −2 AM1.5 and efficiencies 3 times higher than the symmetric complexes.
Databáze: OpenAIRE