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Thursday, 04 June 2020
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Raw materials & technologies, Technologies, Nanotechnology

Plasma nano-coating for solar industry tested

Tuesday, 13 April 2010

The new plasma process reduces the surface energy of a material, so that when liquids come into contact with it, they form beads and simply roll off. When applied to solar cells, this technology canprevent water, frost and dirt from forming on the surface.

The nanometer-thin polymer coating is applied in a vacuum chamber Source: P2i

The nanometer-thin polymer coating is applied in a vacuum chamber Source: P2i

The durable coating renders a surface like panel glass to be not merely liquid-repellent, but rather "non-wettable," which means that dirt and other materials do not adhere. In colder climates, frost can be a problem for solar systems, but the new coatings product reduces frost formation, since water beads up and rolls off the glass surface—especially inclined panels. Another feature of the new coating is that it does not deflect or absorb as much energy—only one third—as competing coatings like PTFE. Thus energy capture by the energy-conversion materials is higher. Other commonly used solar panel coatings, like silicon dioxide, which provides glare protection, afford little functionality for water-repellency. The P2i coating is molecularly bound to the entire product surface and solvent-free. The nanometer-thin polymer coating is applied in a vacuum chamber using a special pulsed ionized gas, or plasma, according to the company.

related links:

http://www.p2ilabs.com

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