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Glass is one of the most important photovoltaic materials in photovoltaic modules, with a reflection loss of about 4% at the air or glass interface. In order to further improve the transparency of glass, a layer of anti reflection film (ARC) is usually covered on its surface to increase the power and efficiency of the component. The principle is that sunlight will form different reflected light between different material interfaces, and there will be interference between the reflected light, forming new light waves. Due to the fluctuation of light, there is a certain probability of superposition and cancellation, resulting in weakened reflected light and enhanced transmitted light. Anti reflective films not only have the function of anti reflection, but some film layers also have the functions of superhydrophobicity and self-cleaning.
Anti reflective film, also known as low reflective film, its main function is to reduce or eliminate the reflected light on optical surfaces such as lenses, prisms, and flat mirrors, thereby increasing the light transmission of these components and reducing or eliminating stray light in the system. Photovoltaic anti reflection coating glass is a cover glass applied to the surface of solar modules. Its main function is to ensure light transmission while protecting crystalline silicon cells from external environmental damage.
The transmittance performance of photovoltaic anti reflection coating glass has a direct impact on the power generation of photovoltaic modules, determining how much light energy reaches the surface of the solar cell. Therefore, transmittance performance is one of the core indicators for measuring its quality standards. Therefore, the preparation of anti reflection coating has become a key link in the manufacturing of photovoltaic modules. The use of ultrasonic spraying method to prepare anti reflective film can further enhance the transparency of glass and improve the power and efficiency of photovoltaic modules.
