and its active ingredient is extracted from onion skin. Currently, clear films made of petroleum-based materials are applied to the surface of solar cells for UV protection. Both the acquisition ...

Researchers at the University of Turku, Finland, investigated how to use bio-based materials to produce effective UV protection films for solar cells ... dyed with red onion skin extract provides ...

In the picture, a film dyed with red onion skin extract and dye-sensitised solar cells. The films were placed on top of the solar cells in the study. Researchers at the University of Turku, Finland, ...