Super Hydrophilic Surface Coating for PV Modules

Since the sun is a usable source of energy available throughout the year and can be used effectively for electricity production. However, owing to the reflection at the interface of air and the top surface of the photovoltaic (PV) module and some time the deposition of dust on the panels, a substantial percentage of solar energy is wasted. As a result, multipurpose slim coatings or layers have been used in recent times to improve the surface morphology and characteristics of solar panel surfaces to improve their energy transmittance, self-cleaning, antireflection, and antifogging properties of the PV modules. This research talks about the super hydrophilic surface coating for the solar PV module. Some of the main roles that super hydrophilic coating contributes are being discussed here, such as improved solar panel efficiency, greater power accumulation, and self-cleaning properties. In recent years, TiO2 based hydrophilic coating has been extensively studied. This oxide has a few constraints since it diminishes the glass conveyance and it quickly restores the water contact angle in dim conditions. In this chapter, major characteristics, principles, techniques, methods, advantages, and disadvantages of TiO2 based super hydrophilic coating for PV modules has been discussed.