A New Ruthenium Sensitizer Containing Benzo[1,9]quinolizino(acridin-2-yl)vinyl-2,2′-bipyridine Ligand for Effective Nanocrystalline Dye-Sensitized Solar Cells

Table 1

Optical, oxidation, and DSSC performance parameters of dyes.

Dye	𝜆^aabs/nm (ε/M^-1cm^−1)	𝐸^box/V	𝐸0-0^c/V	𝐸^dLUMO/V	𝐽sc (mA cm^−2)	𝑉oc (V)	𝐹𝐹	𝜂^e (%)
JJ-12	531 (15,430); 420 (24,430)	0.92	1.88	−0.96	16.47	0.71	0.71	8.34
N3	520 (14,400); 380 (14,682)				14.52	0.72	0.69	7.23

^aAbsorption spectra was measured in ethanol solution. ^bOxidation potential of dyes on TiO₂ were measured in CH₃CN with 0.1 M (n-C₄H₉)₄NPF₆ with a scan rate of 50 mVs⁻¹ (versus NHE). ^c𝐸_0-0 was determined from intersection of absorption and emission spectra in ethanol. ^d𝐸_LUMO was calculated by 𝐸_ox-𝐸_0-0. ^ePerformances of DSSCs were measured with 0.18 cm² working area. Electrolyte: 0.6 M DMPII, 0.05 M I₂, 0.1 M LiI, and tert-butylpyridine in acetonitrile.