ABSTRACT
This chapter presents advancements in the areas of photoanode, cathode, and electrolytes. The dye-sensitized solar cell has the ability to develop efficient cells by addressing the various issues of electrodes and electrolyte design. The electrolyte consists of ions for the interaction with electrodes, where redox reaction takes place to have the electrons flow toward the counter electrode for successful completion of the process. The research and development in dye-sensitized solar cells (DSSCs) are trending high, and such enhancement in efficiency is achieved by optimization of photoanode design, sensitizers/dyes, and electrolytes. The liquid electrolytes have received more attention due to their high ionic conductivity; however, solid or semisolid electrolytes are also gaining popularity due to their ease of processing in devices and better stability. DSSC has arisen as a new technology, and numerous efforts are going on to progress in the direction of an efficient material to overcome the conventional silicon-based solar cell.
