Surface treatment of photovoltaic coating substrate

About Surface treatment of photovoltaic coating substrate

Surface treatment of the PET allows thermal lamination to be carried out at temperatures 20 °C below the glass transition temperature of the PET substrates. X-ray photoelectron spectroscopy analysis has been conducted to show the presence of various chemical bonds on the coated PET.

Using this substrate, a PV cell with a self-cleaning surface was fabricated with a WCA of 171.2° and an SA of 1.9°. Compared to planar silicon PV cells, the efficiency of self-cleaning surface PV cells increased from 14.6 % to 16.0 %.

This study presents a novel approach to fabricate self-cleaning, superhydrophobic coatings on glass surfaces and photovoltaic cells. Using a cost-effective spray-coating technique, superhydrophobic glass surfaces were developed incorporating modified SiO2 nanoparticles (NPs), synthesized via a simple sol–gel method.

One promising approach involves the application of antireflective coatings to the surface of the photovoltaic glass to improve its transmittance. However, balancing mechanical durability, self-cleaning characteristics, and optical performance for photovoltaic applications remains challenging.

Before the perovskite layer and electron transport layer (ETL) are applied, the TiO2 layer is coated with the FTO substrate, and the surface of the FTO substrate is polished using CMP. As a result, the CMP-treated surface of the FTO substrate showed a smooth surface, and the PSCs with CMP treatment did not require conventional TiCl4 treatment.

As the photovoltaic (PV) industry continues to evolve, advancements in Surface treatment of photovoltaic coating substrate have become critical to optimizing the utilization of renewable energy sources. From innovative battery technologies to intelligent energy management systems, these solutions are transforming the way we store and distribute solar-generated electricity.

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6 FAQs about [Surface treatment of photovoltaic coating substrate]

Can antireflective coatings improve photovoltaic performance?

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.

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.

Which method is used for self-cleaning of photovoltaic glass cover?

Because of its compatibility with glass, such methods are particularly conducive to the formation of transparent and super-hydrophobic films on the glass surface (Yan et al. 2011). Therefore, the sol–gel method is often used for self-cleaning of photovoltaic glass cover.

How is surface treatment performed on pre-coated PET substrates?

Surface treatment is conducted on the pre-coated PET substrates to reduce the lamination temperature to below that of the glass transition temperature T g of PET. Surface treatment is carried out using epoxy- based silane coupling agent (termed as silane for future reference).

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.