A Robust mixed organic dye sensitized solar cell based on I-/I3- electrolytes for high efficiency and stability

Energy crises are on their way, but efforts towards preventing them have already started such as creating devices that convert renewable energy sources into electrical power and other forms. DSSC is an efficient third-generation solar cell based thin layer technology due to its low assembly cost, light weight, flexibility and environmentally friendliness. A semiconductor–electrolyte interface makes up the junction of this photo-electrochemical cell. In the present work, a paste of TiO2 nanoparticles has been used for the semiconductor layer and iodide/triiodide (I-/I-3) redox mediator. Solution was prepared for the electrolyte and for photosensitizer, mixer of two organic dyes. Brilliant green and Bromocresol green was used in this work. Photoconversion efficiency (η) and optical parameters like UV and SEM were measured by preparing solution in three different solvents. It was observed that the highest result was obtained in ethanol solvent which was 1.02%. This study briefly describes the performance of mixer of two organic dyes in three different solvents.