A. Ehret, L. S. Stuhl, M. Spitler
Oct 13, 2000
Citations
0
Influential Citations
51
Citations
Journal
Electrochimica Acta
Abstract
Abstract The sensitizing properties of cyanine dyes in dye-sensitized nanocrystalline TiO 2 solar cells are shown to be controlled by the character of the carboxyl functions used to attach the molecules to the surface. These tether functions affect the degree of aggregation of the subject cyanine dyes attached to TiO 2 as well as the short circuit photocurrents they produce in these solar cells. Use of two carbons, acetic acid linkages, on the dye results in performance in a sensitized solar cell comparable with a control ruthenium complex, in contrast to the greatly diminished performance of dyes with longer, methylbenzoic acid linkages.