Onions are solar panels that convert solar energy into electricity. These are kept in sunlight for a long time. Then, along with sunlight, ultraviolet rays also fall on them. This reduces their lifespan.
Onions help convert solar energy into electricity
Therefore, films that only allow sunlight and block ultraviolet rays should be used in the panels. Currently, only films derived from petroleum products are used. However, both their production and use are harmful to the environment. Therefore, scientists were researching to find a film that does not pollute the environment.
Some leading universities in the Netherlands and Finland have found a solution to this. ‘Nanocellulose’, a fine cellulose fiber found in plants, can be used as a film. However, it cannot be used as it is.
Therefore, they took a type of dye called anthocyanin from onion leaves. They mixed this with nanocellulose to create a film.
Tested for 1000 hours in front of a lamp that emits ultraviolet rays, the film blocked 99.9 percent of the rays.
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