Effect of a redox electrolyte in mixed solvents on the photovoltaic performance of a dye-sensitized solar cell

A high energy density solar rechargeable redox battery

“…Although neither of them has been utilized in a DSSC device, a mixture of THF in AcN is reported to have a positive effect on DSSC performance at up to a 30% volumetric ratio of THF in AcN. 25 As a result, an AcN/THF (2 : 1 v/v) mixture was used in this work to simultaneously address the high redox solubility need of a redox battery and low viscosity, high polarity requirements of DSSCs.…”

Stability improvement of gel-state dye-sensitized solar cells by utilization the co-solvent effect of propionitrile/acetonitrile and 3-methoxypropionitrile/acetonitrile with poly(acrylonitrile-co-vinyl acetate)

“…The other factor affecting the conductivity of an electrolyte is the dielectric constant of the solvent. It was reported that the diffusivity of I 3 À ions and conductivities are higher for the solvents those have high dielectric constants [35,36]. For the three solvents used in this work, the dielectric constant increases in the following order PPN (27.7) < ACN(38) < MPN(40).…”

The effects of pyridine derivative additives on interface processes at nanocrystalline TiO2 thin film in dye‐sensitized solar cells

“…Therefore, the larger the partial charge on the nitrogen or oxygen atom of the pyridine derivative additives is, the easier and the more often the pyridine derivations can be adsorbed onto the Lewis acid sites of the bare TiO 2 surface, which would cause a larger V oc by negative shifting of the conduction band edge of TiO 2 . 20 According to Table 2, for all pyridine derivatives, the rate of back electron transfer for high concentration was faster than that at low concentration. The higher the concentration the pyridine derivatives was, the easier and more often pyridine could be adsorbed onto the Lewis acid site of TiO 2 , which led to the fast rate of back electron transfer.…”