This research studied the effect of adding synthetic dye DN-F05 (red dye) to electrical and optical properties. Dye-Sensitized Solar Cell (DSSC) sandwich components are consist of FTO/TiO<sub>2</sub>-Dye-elektrolit-Platina/FTO. In this study, the working electrodes were made by Titanium dioxide (TiO2) which was deposited on FTO glass and then annealed at 450<sup>o</sup>C for 30 minutes. The dye concentration DN-F05 was made with a mass of 0.001 gr, then will be stirred for 2 hours into 5 ml of ethanol at a temperature of 40<sup>o</sup>C. In this study the spin coating method is used with a rotational speed of 1000 rpm for 20 seconds. Characterization of optical properties was carried out using a UV-VIS spectrophotometer to determine the absorbance curve of dye and to get Gap energy. The peak absorbance value was obtained at wavelengths between 400-700 nm. This proved that the addition of DN-F05 dye concentration has a major influence on the optical properties.
A DSSC’s performance depends on its working electrode. Since this working electrode functions as an electron carrier, it affects how well DSSC solar cells perform. This study focused on working electrodes that use the dye DN-F05 and the Ag ions in the hybrid dye DN-F05 as a sensitizer. This research was conducted using the spin-coating method. Based on structural, optical, and electrical data, the results obtained were related to each other. It was determined that Ag has a significant influence on DSSC performance, and this discovery was also the main goal of this study. Previous studies have shown that the addition of Ag as a doping agent is an effective strategy for improving chemical and electronic properties. This can be proven through electrical measurements, which have shown an efficiency of 5.33%. However, when a significant amount of Ag is hybridized in the dye DN-F05, it will cause a decrease in DSSC performance due to the accumulation of Ag particles on the semiconductor’s surface, creating a barrier to light absorption and aggregation. This is what led to the selection of a hybrid material (Ag metal), as Ag is unique and offers great potential with respect to boosting solar cells’ performance.
This research reports the performance of DSSC solar cells that have been fabricated by modification of Ag metal doping with varying concentrations. The sample was deposited by spin coating method and characterized using UV-Vis spectrophotometer to obtain gap energy, FESEM characterization to see sample’s morphology, IPCE, and solar simulator to show performance of DSSC solar cell. The TiO2 / DN-F01 / Ag working electrode layer has a gap energy of 1.95 eV which value is smaller than the pure TiO2 layer and TiO2 / DN-F01 which value is 3.15 eV and 2.3 eV respectively. The results show the greatest efficiency found in Ag doped dye solar cell samples with Ag mass of 0.0172 gr. This result was influenced by Ag metal which has good light absorption ability, extends TiO2 response to visible light, and charge recombination.
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