DuPont Kabushiki Kaisha and Fujipream announced their newest development – a thin crystalline silicon glass-glass PV module. The companies assert, with the exception of the frame, that this new module is 25% lighter in weight than traditional c-Si modules using standard solar grade front glass.
The module is constructed using two sheets of DuPont’s PV5300 series ionomer-based encapsulant , which surround and protect the module’s silicon cells and circuitry that has been placed between two 1.1mm sheets of thin glass. The PV5300 technology is said to replace EVA-based encapsulant’s, lending to a stronger, but thinner module that is able to withstand load and hail tests.
“Fujipream is taking advantage of DuPont PV5300 series encapsulant to enhance overall module strength and rigidity,” explains Jun Koishikawa, development manager of DuPont Packaging and Industrial Polymers. “The ionomer sheet’s adhesion to glass is well-established from years of related experience in laminated structural glass. The high shear coupling of the glass layers via use of the ionomer encapsulant creates a composite-like module structure with strength comparable to a single piece of thicker glass.”