Researches on Anti-reflection Coating (ARC) Methods Used in PV Systems

Öz

With the development of PV systems’ technology over the years and the reduction of production costs, PV systems are now being used for electricity generation. PV systems are listed among the renewable energy sources as the only requirement is solar energy and electricity generation is carried out without any fuel and waste. Solar cells used in PV systems are adversely affected by extremes of temperature, shading, reflection, and pollution. It is known that before sunrays reach the cell’s surface, some of them disappears from the protective glass surface and are reflected back from the cell through the glass surface. Anti-reflection coatings (ARC) are used to reduce the energy loss and increase solar cell efficiency and output power. SiO₂ and MgF₂ are the most commonly used solutions among these coatings. It has been seen that the most efficient applications, with anti-reflection coatings as single, double, triple and more layers, are in triple layers applications. It has been observed that applications to the protective glass surface have self-cleaning properties, and TiO₂ and ZrO₂ are frequently used for this. The reflectance index of the protective glass, which is normally 1.51, can be reduced to 1.20 in silicone cells and 1.28 in thin film surfaces with the AR coatings.

Anahtar Kelimeler

• PV systems,Anti-reflection,Anti-reflective Coating,Reflection index

Kaynakça

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