Novel 4′-functionalized 4,4′′-dicarboxyterpyridine ligands for ruthenium complexes: near-IR sensitization in dye sensitized solar cells

Abstract

Five novel ruthenium sensitizers, MC113–MC117 were synthesized and applied for dye sensitized solar cells.

Study of Donor–Acceptor–π–Acceptor Architecture Sensitizers with Benzothiazole Acceptor for Dye‐Sensitized Solar Cells

“…Thec ommercially available starting materials phenoxazine andp henothiazine were subjected to alkylation, followed by formylation, affording 4a and 4b,r espectively,i n8 2and 81 %y ields. [34] The decyl chainso np henoxazine and phenothiazine improve the solubility and form at ightly packed insulating monolayer, which blockst he approacho fI À ions or any other cations towards TiO 2 . para-Bromoaniline was thiocyanated in the presence of bromine and ammonium thiocyanate to afford 6-bromobenzothiazol-2-amine in 65 %y ield.…”

“…1 10-Decyl-10H-phenothiazine (3) [35] Compound 3 was synthesized by following the same procedure as that described for 2 from phenothiazine (2.00 g1 0.050 mmol), NaH (0.289 g, 12.060 mmol) and 1-bromodecane (3 mL, 12.060 mmol) and was obtained as av iscous liquid (81 %). 10-Decyl-10H-phenothiazine-3-carbaldehyde (2 b) [34] Compound 2b was synthesized by following the same procedure as that employed for 4 by using 3 (0. 3-(6-Bromobenzo[d]thiazol-2-yl)-10-decyl-10,10 a-dihydro-4 aHphenoxazine (5 a) [34] Am ixture of 4a (0.…”

“…10-Decyl-10H-phenothiazine-3-carbaldehyde (2 b) [34] Compound 2b was synthesized by following the same procedure as that employed for 4 by using 3 (0. 3-(6-Bromobenzo[d]thiazol-2-yl)-10-decyl-10,10 a-dihydro-4 aHphenoxazine (5 a) [34] Am ixture of 4a (0. 3-(6-Bromobenzo[d]thiazol-2-yl)-10-decyl-10,10 a-dihydro-4 aHphenothiazine (5 b) [34] Compound 5b was synthesized by following the same procedure as that described for 5a,s tarting from 4b (0.…”

“…3-(6-Bromobenzo[d]thiazol-2-yl)-10-decyl-10,10 a-dihydro-4 aHphenoxazine (5 a) [34] Am ixture of 4a (0. 3-(6-Bromobenzo[d]thiazol-2-yl)-10-decyl-10,10 a-dihydro-4 aHphenothiazine (5 b) [34] Compound 5b was synthesized by following the same procedure as that described for 5a,s tarting from 4b (0. 5-[2-(10-Decyl-10H-phenothiazin-3-yl)benzothiazol-6-yl]thiophene-2-carbaldehyde (6 d)…”

Terpyridine and Quaterpyridine Complexes as Sensitizers for Photovoltaic Applications

“…Very recently, Dehaudt [80] and Koyyada [81] proposed a simple synthetic pathway to achieve 4’-substituted Black Dye analogs (Figure 10) using octylthiophene ( 8b ) and hexyl bithiophene ( 8d ), pyrrole ( 8c ), triphenylamine ( 8e ), t -butyl phenyl ( 8f ), phenoxazine, and phenothiazine groups. While these modifications did not allow to achieve better results respect to the BD in terms of efficiency, they gave an insight into the structure-property relationships, as well as fundamental issues about charge transfer, polarization, or binding.…”