Publication
Nanocryst. solar cells were made by incorporation of cis-dithiocyanato-bis(2,2'-bipyridyl-4,4'-dicarboxylate) ruthenium (II) into sputter deposited titanium oxide films. After a pyridine treatment, it was possible to achieve a photoelec. conversion efficiency as high as 7% for a solar intensity of 100 W/m2 - almost the same as for conventional nanocryst. cells with colloidally prepd. titanium oxide. Transmission electron microscopy indicated a parallel penniform microstructure, and secondary ion mass spectroscopy showed that the dye incorporation was uniform except in the bottom parts of the sputtered films where a decreased porosity seems to limit the penetration of the dye.
Mohammad Khaja Nazeeruddin, Hiroyuki Kanda, Albertus Adrian Sutanto, Nadja Isabelle Desiree Klipfel
Christophe Ballif, Quentin Thomas Jeangros, Mathieu Gérard Boccard, Monica Morales Masis, Sihua Zhong, Weiliang Wu