Synthesis of a novel dinuclear ruthenium polypyridine dye for dye-sensitized solar cells application

Magnetic field effects in dye-sensitized solar cells controlled by different cell architecture

“…Namely, faster transport and longer lifetime of the free electrons in a NP layer makes the (e-h) pairs acquire greater radii. Moreover, the (e-h) pair radius will depend also on a specific orbital arrangement of the three applied sensitizers in the form of: commercially available ruthenium N719 and squaraine-based SQ2 dyes, and reported by us earlier dinuclear ruthenium polypyridine B1 dye 31 . Absorption spectra and molecular structures of these dyes are shown in Fig.…”

“…To prepare photoanodes titania electrodes were immersed in a 1 × 10 −4 M solution of N719 (Solaronix) or B1 (synthesized by us 31 ) dye in absolute ethanol or in a mixture of 1 × 10 −3 M chenodeoxycholic acid (Solaronix) and 1 × 10 −4 M SQ2 (Solaronix) dye in absolute ethanol at room temperature overnight. A platinum coated FTO was used as a counter electrode and a mixture of 0.6 M 1-butyl-3-methyl imidazolium iodide (Aldrich), 0.06 M lithium iodide (Aldrich), 0.03 M iodine (Poch), 0.1 M guanidinium isothiocyanate (Aldrich), 0.5 M 4-tert-butylpyridine (Aldrich) in acetonitrile was used as an electrolyte.…”

A ruthenium(II) bipyridine complex containing a 4,5-diazafluorene moiety: Synthesis, characterization and its applications in transfer hydrogenation of ketones and dye sensitized solar cells

“…The lower power conversion efficiency can be attributed the weaker binding of [Ru(bpy) 2 L](PF 6 ) 2 to TiO 2 with respect to the N719 dye. Zalas et al [50] synthesized a new dinuclear dendritic-like ruthenium dye which consists of two trisbipyridyl ruthenium(II) derivatives clipped with an ethyl 3,5-diethynylbenzoate group. They have presented spectroscopic and electrochemical characterization of the new compound and used it in the fabrication of a DSSC.…”

TheCortinariusFungi Dyes as Sensitizers in Dye-Sensitized Solar Cells

“…All chemicals used were of analytical grade and were used as received without any additional purification. The procedure used for preparation of the titania electrodes was similar to those described elsewhere [26] and was as follows: 3 mL titanium tetraisopropoxide (Aldrich) was added to 13.5 mL of ethylene glycol (Chempur) magnetically stirred at 333 K. The mixture, after addition 12.6 g of citric acid monohydrate (POCh), was heated under stirring at 363 K, until clear. The transparent sol obtained was mixed with 5.6 g P25 TiO 2 (Degussa) by grinding in an agate mortar for 1 hour.…”