Ruthenium complex-cored dendrimers: Shedding light on efficiency trade-offs in dye-sensitised solar cells

TitleRuthenium complex-cored dendrimers: Shedding light on efficiency trade-offs in dye-sensitised solar cells
Publication TypeJournal Article
Year of Publication2009
AuthorsAn, Byeong-Kwan K., Mulherin Rhiannon, Langley Benjamin, Burn P. L., and Meredith Paul
JournalOrganic Electronics
Volume10
Issue7
Pagination1356 - 1363
Date Published07/09
KeywordsDendrimer
AbstractA series of first generation dendrimers provide important insight into the performance of dye-sensitised solar cells (DSSCs). The dendrimers are comprised of a substituted [cis-di(thiocyanato)-bis(2,2'-bipyridyl)ruthenium(II) complex, first generation biphenyl-based dendrons, and either four, eight, or twelve 2-ethylhexyloxy surface groups. The dendrimers were bound to the titanium dioxide of the DSSCs via carboxylate groups on one of the bipyridyl moieties in a similar manner to the [`]gold standard' [cis-di(thiocyanato)-bis(4,4'-dicarboxylate-2,2'-bipyridyl)]ruthenium(II) 1 (N3). Exchanging one pair of the carboxylate groups on one bipyridyl ligand of N3 with styryl units to give [cis-di(thiocyanato)-(4,4'-dicarboxylate-2,2'-bipyridyl)-(4,4'-distyryl-2,2'-bipyridyl]ruthenium(II) 2 resulted in an improvement in device performance (7.19%
URLhttp://www.sciencedirect.com/science/article/B6W6J-4WTHS6T-1/2/4be64129667552277807f87843ff28e8
DOIDOI: 10.1016/j.orgel.2009.07.017