The role of natural dyes in enhancing DSSC performance: A comparative evaluation

The increasing global emphasis on renewable energy to mitigate pollution and environmental challenges has led to significant advancements in solar photovoltaic (PV) technologies. Among these, dye-sensitized solar cells (DSSCs) have gained attention for their cost-effectiveness, ease of fabrication, and potential for large-scale applications. This study explores the performance of DSSCs using natural dyes extracted from locally available flowers in Kerala, India, as sensitizers, compared to conventional synthetic dyes. Key performance metrics, including open-circuit voltage, short-circuit current, current density, and power output, were evaluated for each dye. The findings reveal that certain natural dyes exhibit comparable or even superior photovoltaic performance, offering a sustainable and eco-friendly alternative to synthetic dyes. This research highlights the viability of natural dyes in enhancing DSSC efficiency and their potential role in advancing renewable energy solutions, particularly in regions rich in biodiversity.