Today, one of the primary challenges for photovoltaic (PV) systems is overheating caused by intense solar radiation and elevated ambient temperatures [1,2,3,4].To prevent immediate declines in efficiency and long
The laminated substrates show high optical transparency due to the absence of an interlayer. Surface treatment of the PET allows thermal lamination to be carried out at temperatures 20 °C below
One possible way of improving the peel strength of thermal laminated untreated PET is by using higher lamination temperatures above the T g of PET. However, in large-area flexible lamination this is not advisable, as warpage and stretching of the PET substrates can occur when the temperature becomes too high.
Researchers in China are proposing a new technique to recover polyethylene glycol terephthalate (PET) and ethylene-vinyl acetate (EVA) in solar panels at the end of their lifecycle. The two materials represent around 15% of the total material in a wasted solar cell, with a share of 10% for EVA and 5% for PET, respectively.
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).
The laminated substrates show high optical transparency due to the absence of an interlayer. 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.
Multiple end-of-life, crystalline silicon PV panels were provided by a waste management and recycling company in Japan. The surface glass from each panel was removed by shot blasting after physically detaching the aluminum frame.
Polyethylene terephthalate (PET) is a low-cost flexible film that can be used as a substrate for photovoltaic devices. Lamination of large flexible PET films using adhesives poses the common problems of non-uniformity in adhesive thickness and high interfacial thickness.
