Self-cleaning materials for solar photovoltaic panels

Why do photovoltaic panels need a self-cleaning coating?

The self-cleaning coating has attracted extensive attention in the photovoltaic industry and the scientific community because of its unique mechanism and high adaptability. Therefore, an efficient and stable self-cleaning coating is necessary to protect the cover glass on the photovoltaic panel. There are many self-cleaning phenomena in nature.

What are automatic solar cleaning methods?

Various automatic solar cleaning methods have been developed to resolve the abovementioned challenges. Self-cleaning technology can be broadly classified into two sections: 1.) Electrical Field: The system takes advantage of the fact that most dust particles have an electric charge, particularly in dry environments.

Are self-cleaning solar panels durable?

The durability of self-cleaning coatings is one of the main factors afecting their large-scale commercial applications. When applied to solar panels, the photocatalytic activity of the super-hydrophilic coating will disappear after a period of time.

Which method is suitable for self-cleaning coating of photovoltaic modules?

The preparation methods suitable for self-cleaning coating of photovoltaic modules include LBL, CVD, sol–gel method, and plasma-etching technology. LBL, CVD and sol–gel technologies are all CVD-based surface treatment technologies, which have difficulty in precision control. Sol–gel method and LBL are both economical.