Encapsulation of PV Modules Using Ethylene Vinyl Acetate Copolymer as the Encapsulant

Abstract

Ethylene vinyl acetate (EVA) encapsulation materials have attracted a lot of attention due to their extensive applications in solar cells. Nearly 80% of photovoltaic (PV) modules are encapsulated by EVA materials. EVA has lots of advantages, such as good light transmittance and elasticity, low processing temperature, excellent melt fluidity, and adhesive property. In addition, the price is low, which makes it very suitable as a solar cell encapsulation material. However, there are also some problems with EVA. Its damp-heat aging resistance and ultraviolet aging resistance are not good. It also easily degrades and becomes yellow, reducing the energy conversion efficiency of the solar cell. This article pays special attention to improving the performance of EVA encapsulation films. In addition, it differentiates between different properties, including the aging resistance, adhesive strength and energy conversion efficiency.

Eumelanin for nature‐inspired UV‐absorption enhancement of plastics

“…S8 in File S1), similarly to what happens to the eumelanin‐related absorption enhancement in the UVA. The depletion of BLS ® 531 can be due both to its photodecomposition and to physical loss, because of its relatively low molecular weight …”

Photo‐Thermo‐Refractive Glasses Doped with Silver Molecular Clusters as Luminescence Downshifting Material for Photovoltaic Applications

“…Typical materials for LDS applications are glasses, crystals, and polymers doped with rare-earth and transition metal ions, [6,[8][9][10][11][12][13] quantum dots, [14][15][16] and organic dyes. [17][18][19] Glasses and polymers show promising potential for industrial application due to their easily tuned properties, cost-effective production, and current use in PV modules as the cover plate and encapsulant, [20] respectively. Thus, doping of the mentioned materials by luminescent species for developing LDS materials seems to be the most effective way, being no need to add new elements in a PV cell core construction.One of the most attractive material for developing various photonic elements and devices is photo-thermo-refractive (PTR) glass.…”

Polymer Reaction Engineering in China

“…The major theme of the conference was on the development of advanced polymers and polymerization technologies. The first HIPF was in May [14][15][16][17]2007, and the second in May 22-25, 2011. The conference, together with ''Polymer Reaction Engineering'' (PRE) in North America and ''International Workshop on PRE'' in Germany, has become one of the PRE conference series in the world, rotating annually around China, Germany, and North America.…”

“…[14] Prof. Qiang Yu of Changzhou University employed poly(ethylenevinylacetate) to encapsulate photovoltaic modules. [15] It took a whole year for the preparation of this special issue from its initiative to the realization. It is our hope that this special issue will be highly interesting to our readers and serve the objective to bring the journal Macromolecular Reaction Engineering in closer contact with the Chinese PRE community and vice versa.…”