Enhancing Fluorophore-Induced Plasmonic Current for Converting Solar Energy

Biological chromophores and certain model organisms present a unique opportunity in solar energy harvesting. Currently, solar energy conversion efficiency rates are in the low 20s, necessitating multiple panels to generate electricity. This is a problem since many agricultural farms are transitioning into solar farms, supporting the growing demand for electricity and further deepening existing food crisis. Therefore, the system’s efficiency, stability, and longevity are crucial. Advances in plasmonic materials offer promising results due to their compatibility with fluorescent biosensors and various fluorophores, suggesting potential applications in solar energy conversion. In this presentation, we discuss a technology called fluorophore-induced plasmonic current (FIPC), where plasmonic thin films and a fluorophore solution are used to generate current. We consider a few methods to increase current produced by FIPC for example, annealing thin films and incorporating metallic colloids in the fluorophore solutions. Key takeaway on annealing thin films suggests an increase in current response within the working range and lowering signal to noise ratio, leading to a stable baseline current. Preliminary data on metallic colloids mixed with fluorophore solutions indicate an <i>exceptional</i> increase in current generation. Future work in this project will translate our present findings to biological chromophores.