1422195-67-2Relevant articles and documents
Improvement of TiO2/dye/electrolyte interface conditions by positional change of alkyl chains in modified panchromatic Ru complex dyes
Kimura, Mutsumi,Masuo, Junya,Tohata, Yuki,Obuchi, Kazumichi,Masaki, Naruhiko,Murakami, Takurou N.,Koumura, Nagatoshi,Hara, Kojiro,Fukui, Atsushi,Yamanaka, Ryohsuke,Mori, Shogo
, p. 1028 - 1034 (2013/02/25)
A series of panchromatic ruthenium sensitizers (MJ sensitizers) with attached thiophene and phenyl units bearing alkyl chains was synthesized. A new synthetic route was used to examine all possible positions for the alkyl chains. The absorption spectra showed the sum of a ruthenium complex and peripheral organic chromophore units. The hypochromic effect and blueshift of the metal-to-ligand charge-transfer band observed in the modified ruthenium sensitizers were suppressed by changing the positions of the alkyl chains on the attached thiophene ring. Changing only one alkyl chain also influenced the performance of dye-sensitized solar cells. Ruthenium sensitizer MJ-10 with bulky substituent harvests visible and near-infrared light, and solar cells sensitized by MJ-10 exhibit an efficiency of 9.1 % under 1sun irradiation. An unsymmetric terpyridine ligand having a bromo group as a connection point for the introduction of various substituents by Suzuki coupling reactions with boronic acids was used to explore the effect of substituents on the energy-conversion efficiency of dye-sensitized solar cells (DSSCs). Introduction of a peripheral bulky substituent improved the DSSC performance, and MJ-10 (see figure) harvests visible and near-infrared light, whereas solar cells sensitized by MJ-10 exhibit an efficiency of 9.1 % under 1sun irradiation. Copyright
