Photovoltaic panel coating equipment

Can coatings improve solar panels' self-cleaning properties?

Coatings of solar panels to increase their self-cleaning property involve two types of films, such as, superhydrophilic and superhydrophobic films. Self-cleaning nano-films are being considered as potential coatings for improving the efficiency of PV modules.

Do coated PV panels improve photocatalytic performance?

The coated PV panels gained an average of 5–6% over the observed time while exposed to outdoor conditions. Demonstrated superhydrophilicity and excellent photocatalytic activities. Maximum optical transmittance of over 90% was achieved. Showed excellent optical transmission, robustness and superhydrophilicity.

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.

Why do photovoltaic panels need a transparent coating?

When sunlight shines on the photovoltaic panel, part of the visible light will be reflected, and the rest will be converted and utilized. Therefore, the transparency and anti-reflection of the self-cleaning coatings applied on photovoltaic modules cannot be ignored.

Which surface treatment is suitable for preparing photovoltaic self-cleaning surfaces?

CVD-based surface treatment is suitable for preparing photovoltaic self-cleaning surfaces. These methods prepare self-cleaning surfaces by reacting gaseous substances with hot surfaces and depositing them on the surface. They are efficient but difficult to control accuracy.

Are transparent-superhydrophobic coatings suitable for solar panels?

Therefore, these transparent-superhydrophobic coatings are being considered as good candidates for solar panels since they enhance the extent of light transmission and absorbance. Amongst most transparent materials, aromatic polyimides films are regarded as high performance coatings.