Synthesis and Characterizations of TiO2/Ag Photoanodes for used Indigo Carmine Sensitizer Based Solar Cells

Abstract

In this work we have prepared Ag doped TiO2 composite semiconductor by microwave hydrothermal methods. The prepared TiO2/Ag photoanode was characterized via XRD, FE-SEM and DRS spectroscopy techniques. Then this composite was used as a photoanode material for dye sensitized solar cells. The TiO2/Ag photoanode was prepared by spin coating technique. The sensitizer of this solar cell is indigo carmine and it was prepared in different pH solution in ACN. The higher solar cell efficiency values were achieved up to 1.91% with TiO2/Ag photoanode and in pH 5.3 indigo carmine dye solution. As a result, in this study, it was observed that the addition of Ag nanoparticles was increased the efficiency of solar cell by 20-45%.

Optimization of Polysulfone/Polyethylene Glycol (PSf/PEG) Casted Solution Composition as a Membrane Electrolyte in a Dye-Sensitized Solar Cell (DSSC)

“…Enough energy makes the band gap energy small, and electrons can be easily excited. The conduction band is affected by TiO2, which has an effect that is in line with the LUMO of the dye, which makes it easier for electron injection [30]. The dye sensitizer-based dye in the DSSC system has a lower LUMO value requirement than the TiO2 conduction band (-4.0 eV) and a lower bandgap value than the TiO2 semiconductor (3.2 eV) [24].…”