Cyclometalated ruthenium complex as a promising sensitizer in dye-sensitized solar cells

Strongly visible light-absorbing metal–organic frameworks functionalized by cyclometalated ruthenium(ii) complexes

“…This cyclometalated Ru(II) complex is known as a sensitizer in DSSCs. 29,31,37,38 Unlike complexes 1-3, it does not contain a ligand with carboxylate groups oriented in a linear fashion, i.e. it is not strictly analogous, neither topologically nor in size, to the bpdc linker in UiO-67.…”

“…Alternatively, the complex may bind to the surface of the MOF crystallites, in a fashion similar to the bonding of sensitizers to TiO 2 particles in DSSCs. 29,31,37,38 UV-visible spectroscopy Diffuse reectance UV-visible (DR UV-Vis) spectroscopy was employed in order to gain detailed information about the electronic properties of the MOFs. The absorbances of the MOFs are shown together with those of the corresponding molecular Ru(II) complexes in methanol solution in Fig.…”

“…Complex 4 is known as a sensitizer in DSSCs. 29,31,37,38 Complexes 1-4 are here attempted incorporated into UiO-67 using three different synthetic protocols: premade linker synthesis, 16,18,39,40 postsynthetic functionalization, 20,21,[41][42][43][44] and postsynthetic linker exchange 23,[45][46][47][48] (Fig. 1), all of which are methods that have been described in the literature for other systems.…”

Cyclometalated ruthenium complexes with carboxylated ligands from a combined experimental/computational perspective

“…In addition, a fourth complex (4-Na) was investigated as a reference because of its reported properties as an effective photosensitizer in DSSCs. 16,18,23,99 DSSCs. 16,18,23,99 It has to be pointed out that two of the four carboxylate groups on 4-Na, one on each of the substituted ligands, actually are in a linear relative arrangement.…”

“…16,18,23,99 DSSCs. 16,18,23,99 It has to be pointed out that two of the four carboxylate groups on 4-Na, one on each of the substituted ligands, actually are in a linear relative arrangement. However, they are separated by two pyridine rings and the Ru atom, so that the distance between them do not match the length of the linkers in UiO-67.…”