Solar Cell UV protection Use Red Onions

Researchers at Turku University have discovered a groundbreaking method to protect solar cells from UV radiation using bio-based materials. Solar cells are often shielded from UV-induced degradation with petroleum-based films like polyvinyl fluoride (PVF) and polyethylene terephthalate (PET). However, the quest for sustainable alternatives has led to the exploration of nanocellulose, a material derived from breaking down cellulose into nanoscale fibers.

The study, conducted in collaboration with Aalto University in Finland and Wageningen University in the Netherlands, revealed that nanocellulose treated with red onion skin extract offers exceptional UV protection. In fact, the nanocellulose film was able to block 99.9% of UV radiation up to 400 nanometers, surpassing the performance of commercial PET-based UV filters.

Doctoral Researcher Rustem Nizamov from Turku University expressed optimism about the potential of nanocellulose films treated with red onion dye in bio-based applications. The study compared the durability and properties of protective films made from cellulose nanofibers treated with red onion extract, lignin, and iron ions. Among these, the red onion extract-treated film demonstrated the highest efficiency in blocking UV radiation.

These findings mark a significant advancement in the field of materials engineering, showcasing the viability of bio-based alternatives for UV protection. The use of nanocellulose derived from sustainable sources presents a promising solution to reduce reliance on oil-based plastics in solar cell applications. With further research and development, bio-based materials like nanocellulose could revolutionize the solar energy industry.

The success of nanocellulose films treated with red onion extract highlights the importance of exploring innovative solutions rooted in nature. By harnessing the UV-blocking properties of bio-based materials, researchers are paving the way for more sustainable and eco-friendly technologies. As the demand for renewable energy sources continues to grow, the integration of bio-based materials in solar cell protection could play a crucial role in advancing the transition towards a greener future.