Researchers have developed a bio-layer based on Spirulina algae to improve the performance of solar cells at high temperatures. This layer acts as an infrared absorber, mitigating the negative effect of heating on the efficiency of photovoltaic panels. The design aims to leverage the natural properties of Spirulina to dissipate heat and, consequently, optimize the conversion of solar energy into electricity under thermal stress conditions.

The problem of overheating is a known challenge in photovoltaic technology, as increased temperature reduces the efficiency of silicon solar cells. The innovation lies in using a biological, sustainable, and low-cost material like Spirulina, instead of traditionally used inorganic or complex absorbers. This approach opens new avenues for the development of more efficient and environmentally friendly solar cells.

The evaluation of this bio-layer focused on its ability to absorb infrared radiation and its impact on the current-voltage (I-V) curves of solar cells. Preliminary results indicate that the integration of the Spirulina layer contributes to maintaining more stable performance and higher power output compared to solar cells without this coating, especially when operating at elevated temperatures. This advance suggests a promising method for improving the long-term durability and efficiency of photovoltaic systems.